identification of seveso sites: practical approach

Identification of Seveso Identification of Seveso Sites:Sites:

Practical ApproachPractical Approach

Preparation of list of industrial Preparation of list of industrial activitiesactivities

Possible sources of informationPossible sources of information– Register of hazardous activitiesRegister of hazardous activities

– Inventories of establishments working Inventories of establishments working with hazardous substanceswith hazardous substances

– Register of IPPC sitesRegister of IPPC sites

– Inspection reportsInspection reports

– Other sourcesOther sources

ExclusionsExclusionsArticle 4 of the directive

– military establishments, installations or storage facilities;– hazards created by ionizing radiation;– the transport of dangerous substances and intermediate

temporary storage by road, rail, internal waterways, sea or air, outside the establishments, including loading and unloading and transport to and from another means of transportation at docks, wharves or marshalling yards;

– the transport of dangerous substances in pipelines, including pumping stations outside the establishments;

– the exploration, extraction and processing of minerals in mines, quarries, or by means of boreholes, with the exception of chemical and thermal processing operations and storage related to those operations which involve dangerous substances;

– the offshore exploration and exploitation of minerals, including hydrocarbons;

– waste landfill sites, with the exception of operational tailings disposal facilities, including tailing ponds or dams, containing dangerous substances, in particular when used in connection with the chemical and thermal processing of minerals.

ExclusionsExclusions

Excluded sector? (Article 4)

Seveso does not apply

What is the quantity of dangerous substances?

(Annex I)

Lower than lower tier

•Notification•Major accident prevention policy (MAPP)•Domino effects•Land-use planning•Inspection

Quantity above the lower threshold

Quantity above the higher threshold

Yes

No

Additionally:•Safety report (including MAPP and safety management system)•Emergency plans (internal and external)•Information to the public

Classification of a Seveso siteClassification of a Seveso site

Step-by-step approachStep-by-step approach Including all installations within the establishmentIncluding all installations within the establishment

– Storage facilitiesStorage facilities– Production facilitiesProduction facilities– Loading and distributing facilitiesLoading and distributing facilities

Including all chemicals in the establishmentIncluding all chemicals in the establishment– Raw materialsRaw materials– IntermediatesIntermediates– ByproductsByproducts– Finished productsFinished products– Substances built during chemical reactions or by Substances built during chemical reactions or by

an accidentan accident

Step 1 – gathering information on all substances at the site

Structure of Annex IStructure of Annex I Part I – Named substancesPart I – Named substances

– Substances of high concern /TDI, Methyl isocyanide, phosgene, Substances of high concern /TDI, Methyl isocyanide, phosgene, chlorine/chlorine/

– Widely used substances /ammonium nitrate, LPG, petroleum Widely used substances /ammonium nitrate, LPG, petroleum products/products/

Part II - Categories of substances and preparations not Part II - Categories of substances and preparations not specifically named in Part IIspecifically named in Part II– Based on generic toxicological, physical-chemical or Based on generic toxicological, physical-chemical or

ecotoxicological propertiesecotoxicological properties

– Characteristic endpoints – LDCharacteristic endpoints – LD5050, LC, LC50, 50, ECEC5050, flashpoint, etc., flashpoint, etc.

Explanatory NotesExplanatory Notes


Classification according the physical, chemical and toxicological Classification according the physical, chemical and toxicological propertiesproperties– The EU chemical legislationThe EU chemical legislation

CLP Directive 67/548/EEC until – 2010 for substances– 2015 for preparations/mixtures

GHS Regulation (EC) No. 1272/2008 – New classification rules– Downstream effect

– Data from the operator Even if the substance does not have EU harmonised classification as a dangerous

substance, due to its properties it still can be dangerous according p. 1 of Annex I of the Directive

The classification of the substances and preparations at the site is a responsibility of the operator!

Step 2 – hazardous chemicals meeting the hazardous chemicals meeting the criteria of Annex Icriteria of Annex I


International Sources of informationInternational Sources of information– MSDS of the chemicalsMSDS of the chemicals

ILO Database - ILO Database - http://www.ilo.org/public/english/protection/safework/cis/products/icshttp://www.ilo.org/public/english/protection/safework/cis/products/icsc/index.htmc/index.htm

Other recognised sources Other recognised sources Classlab – The JRC of the EU database – Classlab – The JRC of the EU database –

http://ecb.jrc.it/classification-labelling/search-classlabhttp://ecb.jrc.it/classification-labelling/search-classlab//– Based on Annex I of Directive 67/548/EECBased on Annex I of Directive 67/548/EEC

Gives Seveso classes -> connection to Annex I of the ConventionGives Seveso classes -> connection to Annex I of the Convention– ESIS database - The JRC of the EU database – ESIS database - The JRC of the EU database – http://http://ecb.jrc.it/esisecb.jrc.it/esis//– Substances produced or marketed in the EUSubstances produced or marketed in the EU

For HPVC and/or substances of high concern – IUCLID dossier with For HPVC and/or substances of high concern – IUCLID dossier with relevant toxicological and physicochemical properties - relevant toxicological and physicochemical properties - httphttp://://ecbecb..jrcjrc..itit//esisesis//indexindex..phpphp?PGM=?PGM=datdat

– Local legislation for classification of hazardous chemicalsLocal legislation for classification of hazardous chemicals– ADR (GHS) Classification of the chemicals - ADR (GHS) Classification of the chemicals - http://http://

www.unece.org/trans/danger/publi/ghs/ghs_welcome_e.htmlwww.unece.org/trans/danger/publi/ghs/ghs_welcome_e.html– Other sourcesOther sources

Toxicological properties scientific reportsToxicological properties scientific reports Physicochemical properties scientific reportsPhysicochemical properties scientific reports Modeling software - EPISUITEModeling software - EPISUITE Websites – Chemfinder, Chemindustry.com, etc.Websites – Chemfinder, Chemindustry.com, etc. Industry experienceIndustry experience

Step 2 – hazardous chemicals meeting the hazardous chemicals meeting the criteria of Annex Icriteria of Annex I


For gaseous and liquid chemicals – the storage and For gaseous and liquid chemicals – the storage and production capacitiesproduction capacities

For solid chemicals – the amount needed for For solid chemicals – the amount needed for 100% 100% production capacity, including reservesproduction capacity, including reserves

Step 2 – Determining the maximum amounts of the Determining the maximum amounts of the hazardous substanceshazardous substances


For named substancesFor named substances– Threshold quantities in Columns 2 Threshold quantities in Columns 2

and 3 of Part 1 of Annex Iand 3 of Part 1 of Annex I– If in preparationsIf in preparations

Recalculation to pure substancesRecalculation to pure substancesAs long as the preparations posses As long as the preparations posses

hazardous propertieshazardous properties

Step 2 – Determining the threshold quantities for the Determining the threshold quantities for the dangerous substancesdangerous substances

Column 1 Column 2 Column 3

Qualifying quantity (tonnes)

Dangerous substances for the application of

Articles 6 and 7

Article 9

Ammonium nitrate (see note 1) 5 000 10 000

Ammonium nitrate (see note 2) 1 250 5 000

Ammonium nitrate (see note 3) 350 2 500

Ammonium nitrate (see note 4) 10 50

Potassium nitrate (see note 5) 5 000 10 000

Potassium nitrate (see note 6) 1 250 5 000

Arsenic pentoxide, arsenic (V) acid and/or salts 1 2

Arsenic trioxide, arsenious (III) acid and/or salts 0,1

Bromine 20 100

Chlorine 10 25

Nickel compounds in inhalable powder form (nickel monoxide, nickel dioxide, nickel sulphide, trinickel disulphide, dinickel trioxide)

1

Ammonium NitrateAmmonium Nitrate– Thresholds – Thresholds – 5 000/10 000, 1250/5000 350/2500 10/505 000/10 000, 1250/5000 350/2500 10/50– IdentificationIdentification

CAS No – CAS No – 6484-52-2 6484-52-2 EC No – EC No – 240-827-6 240-827-6

– Hazard ClassificationHazard Classification Oxidising, decomposes at 210°C, with evolution oOxidising, decomposes at 210°C, with evolution of f toxic toxic

fumes of nitrogen oxidesfumes of nitrogen oxides, , it may explode under it may explode under confinementconfinement and high temperaturesand high temperatures, , forms heat or forms heat or shock sensitive explosiveshock sensitive explosive mixtures with a wide range of mixtures with a wide range of substances (e.g. organic fuel, powdered metals, aceticsubstances (e.g. organic fuel, powdered metals, acetic acid, sugar)acid, sugar), c, can react vigorously with reducing an react vigorously with reducing materialsmaterials, , ignites on contact with aignites on contact with a number of number of substances, for instance sodium chloride.substances, for instance sodium chloride.

– UsesUses Production of fertilisers and explosives.Production of fertilisers and explosives.

Potassium NitratePotassium Nitrate

– Threshold – Threshold – 5000/10000, 1250/50005000/10000, 1250/5000

– IdentificationIdentificationCAS No – CAS No – 7757-79-1 7757-79-1 EC No – EC No – 231-818-8 231-818-8

– Hazard ClassificationHazard ClassificationStrong oxidizerStrong oxidizer, , Harmful if swallowedHarmful if swallowed, , May May

cause reproductive disorders. cause reproductive disorders.

– UsesUsesFertilizer, Food preservation, fire stabilizer, Fertilizer, Food preservation, fire stabilizer,

heat treatment of metals, Glass industry.heat treatment of metals, Glass industry.

ChlorineChlorine– Threshold – 10/25 t.Threshold – 10/25 t.– IdentificationIdentification

CAS No – 7782-50-5CAS No – 7782-50-5 EC No – 231-959-5EC No – 231-959-5

– Hazard ClassificationHazard Classification Toxic by inhalationToxic by inhalation, , Irritating to eyes, respiratory Irritating to eyes, respiratory

system and skinsystem and skin,, Very toxic to aquatic organisms. Very toxic to aquatic organisms. – UsesUses

manufacture of synthetic rubber and plastics manufacture of synthetic rubber and plastics (polyvinyl chloride, neoprene), chlorinated (polyvinyl chloride, neoprene), chlorinated hydrocarbons, hydrogen chloride, metallic hydrocarbons, hydrogen chloride, metallic chlorides, also used for water purification, in chlorides, also used for water purification, in processing of food and in shrinkproofing wool.processing of food and in shrinkproofing wool.

BromineBromine– Threshold – 20/100 t.Threshold – 20/100 t.– IdentificationIdentification

CAS No – CAS No – 7726-95-6 7726-95-6 EC No – EC No – 231-599-9 231-599-9

– Hazard ClassificationHazard ClassificationMay be fatal if inhaled. Highly toxic by May be fatal if inhaled. Highly toxic by

inhalation, ingestion or skin contact. Causes inhalation, ingestion or skin contact. Causes severe burns. Lachrymator. severe burns. Lachrymator.

– UsesUsesFlame retardant, gasoline additive, Flame retardant, gasoline additive,

pesticide production, manufacture of pesticide production, manufacture of dyes, dyes, agrichemicals, and pharmaceuticals agrichemicals, and pharmaceuticals , , Water Water purification compounds, Disinfectants purification compounds, Disinfectants ..

Formaldehyde (conc. Formaldehyde (conc. 90 %) 90 %) – Threshold – 5/50 t.Threshold – 5/50 t.– IdentificationIdentification

CAS No: 50-00-0 CAS No: 50-00-0 EC No: 200-001-8 EC No: 200-001-8

– Hazard ClassificationHazard Classification Causes burns. Very toxic by inhalation, ingestion and Causes burns. Very toxic by inhalation, ingestion and

through skin absorption. Readily absorbed through skin. through skin absorption. Readily absorbed through skin. Probable human carcinogen. Mutagen. May cause damage Probable human carcinogen. Mutagen. May cause damage to kidneys. May cause allergic reactions. May cause to kidneys. May cause allergic reactions. May cause sensitisation. May cause heritable genetic damage. sensitisation. May cause heritable genetic damage. Lachrymator at levels from less than 20 ppm upwards. Very Lachrymator at levels from less than 20 ppm upwards. Very destructive of mucous membranes and upper respiratory destructive of mucous membranes and upper respiratory tract, eyes and skin. tract, eyes and skin.

– UsesUses Production of resins, paints, explosives, Production of resins, paints, explosives, disinfectantdisinfectantss and and

biocidebiocidess

Ethylene OxideEthylene Oxide– Threshold – 5/50 t.Threshold – 5/50 t.– IdentificationIdentification

CAS No – 75-21-8CAS No – 75-21-8EC No – 200-849-9EC No – 200-849-9

– Hazard ClassificationHazard ClassificationMay cause cancerMay cause cancer, , May cause heritable genetic May cause heritable genetic

damagedamage, Extremely flammable, , Extremely flammable, Toxic by inhalationToxic by inhalation, , Irritating to eyes, respiratory system and skin. Irritating to eyes, respiratory system and skin.

– UsesUseschemical intermediate for ethylene glycol chemical intermediate for ethylene glycol

(intermediate for the manufacture of polyester), (intermediate for the manufacture of polyester), nonionic surfactants, glycol ethers, ethanolamines, nonionic surfactants, glycol ethers, ethanolamines, triethylene glycol and polyethylene glycol, used as triethylene glycol and polyethylene glycol, used as a fumigant for foodstuffs and textiles, for sterilising a fumigant for foodstuffs and textiles, for sterilising instruments and as an agricultural fungicide.instruments and as an agricultural fungicide.

HydrogenHydrogen– Threshold – 5/50 t.Threshold – 5/50 t.– IdentificationIdentification

CAS No – 133-74-0CAS No – 133-74-0 EC No - EC No - 215-605-7 215-605-7

– Hazard ClassificationHazard Classification Extremely flammableExtremely flammable

– UsesUses Production of ammonia and methanol, hydrocracking, Production of ammonia and methanol, hydrocracking,

hydroforming and hydrofining of petroleum, hydrogenation of hydroforming and hydrofining of petroleum, hydrogenation of vegetable oils, hydrogenolysis of coal, reducing agent for vegetable oils, hydrogenolysis of coal, reducing agent for organic synthesis and metallic ores, as oxyhydrogen flame for organic synthesis and metallic ores, as oxyhydrogen flame for high temperatures, making hydrochloric and hydrobromic acids. high temperatures, making hydrochloric and hydrobromic acids. In liquid form is used as coolant and missile fuel.In liquid form is used as coolant and missile fuel.

Toluene diisocyanateToluene diisocyanate– Threshold – 10/100 t.Threshold – 10/100 t.– IdentificationIdentification

CAS No – CAS No – 91-08-791-08-7, 584-84-9, 26471-62-5, 584-84-9, 26471-62-5 EC No – 202-039-0, 209-544-5, 247-722-4EC No – 202-039-0, 209-544-5, 247-722-4

– Hazard ClassificationHazard Classification Very toxic, Very toxic, Irritating to eyes, respiratory system and Irritating to eyes, respiratory system and

skinskin, , Limited evidence of a carcinogenic effectLimited evidence of a carcinogenic effect, , May May cause sensitization by inhalation and skin contactcause sensitization by inhalation and skin contact, , Harmful to aquatic organisms, may cause long-term Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environmentadverse effects in the aquatic environment..

Explosive in the form of vapour when exposed to Explosive in the form of vapour when exposed to heat or flame, when heated to decomposition it heat or flame, when heated to decomposition it emits toxic fumes of nitrogen oxides.emits toxic fumes of nitrogen oxides.

– UsesUses manufacture of polyurethane foams, elastomers and manufacture of polyurethane foams, elastomers and

coatings. Crosslinking agent for nylon 6coatings. Crosslinking agent for nylon 6

Sulphur TrioxideSulphur Trioxide– Threshold – 15/75 t.Threshold – 15/75 t.– IdentificationIdentification


– Hazard ClassificationHazard ClassificationOOxidising agentxidising agent, , toxic by inhalation and corrosive to toxic by inhalation and corrosive to

skin, eyes andskin, eyes and mucous membranesmucous membranes, , fire risk in fire risk in contact with organic materialscontact with organic materials, , combines with combines with water, forming sulphuric acid and evolving light and water, forming sulphuric acid and evolving light and a largea large amount of heat. Violent reactions also with amount of heat. Violent reactions also with e.g. acetonitrile, formamide, dimethyle.g. acetonitrile, formamide, dimethyl sulphoxide, sulphoxide, iodine, metal oxides.iodine, metal oxides.

– UsesUsesSulphonation of organic compounds, especially Sulphonation of organic compounds, especially

nonionic detergents, and for solar energy collectors.nonionic detergents, and for solar energy collectors.

Lead AlkylsLead Alkyls– Threshold – 5/50 t.Threshold – 5/50 t.– IdentificationIdentification

Triethyl lead, tetraethyl lead and tetramethyl Triethyl lead, tetraethyl lead and tetramethyl

leadlead

– Hazard ClassificationHazard Classificationtoxic to the central nervoustoxic to the central nervous systemsystem, , cumulative cumulative

poisonpoison,, experimental experimental teratogens and have effects teratogens and have effects

on reproductionon reproduction, , When heated to decomposition When heated to decomposition

they emit toxic lead fumes.they emit toxic lead fumes.

– UsesUsesused as octane enhancers for petrols, also in used as octane enhancers for petrols, also in

ethylation operationsethylation operations

PhosgenePhosgene– Threshold – 0,3/0,75 t.Threshold – 0,3/0,75 t.– IdentificationIdentification


– Hazard ClassificationHazard ClassificationVery toxic by inhalationVery toxic by inhalation, , Causes burns.Causes burns.

– UsesUsesChemical intermediate for toluene diisocyanate, Chemical intermediate for toluene diisocyanate,

methyl isocyanate, diphenylmethane-4,4’-methyl isocyanate, diphenylmethane-4,4’-diisocyanate, chloroformate esters, diethyl diisocyanate, chloroformate esters, diethyl carbonate, dimethyl carbamoyl chloride, carbonate, dimethyl carbamoyl chloride, polymethylene polyphenylisocyanate, polymethylene polyphenylisocyanate, polycarbonate resins. Also used for manufacture polycarbonate resins. Also used for manufacture of dyes, pesticides and herbicides.of dyes, pesticides and herbicides.

Methyl IsocyanideMethyl Isocyanide– Threshold – 0,15 t.Threshold – 0,15 t.– IdentificationIdentification

CAS No – CAS No – 624-83-9624-83-9 EC No - EC No - 215-605-7 215-605-7

– Hazard ClassificationHazard ClassificationHighly flammableHighly flammable, , Harmful by inhalationHarmful by inhalation, ,

Harmful in contact with skinHarmful in contact with skin, , Harmful if Harmful if swallowed.swallowed. Reacts violently with e.g. water Reacts violently with e.g. water (polymerisation, exothermic reactions). (polymerisation, exothermic reactions). Container may explode violently in heat of fire. Container may explode violently in heat of fire. When heated to decomposition, hydrogen When heated to decomposition, hydrogen cyanide, nitrogen oxides and carbon oxides may cyanide, nitrogen oxides and carbon oxides may be produced.be produced.

– UsesUses intermediate in the manufacturing of N-intermediate in the manufacturing of N-

methylcarbonate ester and N-methylurea methylcarbonate ester and N-methylurea insecticides and herbicides.insecticides and herbicides.

Liquefied extremely flammable Liquefied extremely flammable gases (including LPG) and natural gases (including LPG) and natural

gasgas – Threshold – 50/200 t.Threshold – 50/200 t.– IdentificationIdentification

LPG: colourless flammable, noncorrosive, nontoxic gas LPG: colourless flammable, noncorrosive, nontoxic gas obtained as a by-product in petroleum refining or natural obtained as a by-product in petroleum refining or natural petroleum manufacture, e.g. butane, propane, propene petroleum manufacture, e.g. butane, propane, propene and their mixtures.and their mixtures.

Natural gas: colourless flammable, asphyxiant gas Natural gas: colourless flammable, asphyxiant gas composed of 85% methane, 10% ethane, the balance composed of 85% methane, 10% ethane, the balance being made up of propane, butane and nitrogen.being made up of propane, butane and nitrogen.

– Hazard ClassificationHazard Classification Extremely flammableExtremely flammable, , Risk of fire and explosion.Risk of fire and explosion.

– UsesUses LPG: domestic, industrial and automotive fuel, in welding, LPG: domestic, industrial and automotive fuel, in welding,

brazing and metal cutting, and as an intermediate.brazing and metal cutting, and as an intermediate. Natural gas: fuel and cooking gas, in ammonia synthesis, Natural gas: fuel and cooking gas, in ammonia synthesis,

petrochemical feedstocks, carbon black manufacture.petrochemical feedstocks, carbon black manufacture.

Petroleum products: gasolines and Petroleum products: gasolines and naphthas; kerosenes (jetnaphthas; kerosenes (jet fuels); gas oils fuels); gas oils (diesel fuels, home heating oils and gas (diesel fuels, home heating oils and gas

oil blendingoil blending streams)streams)

– Threshold – 2500/25000 t.Threshold – 2500/25000 t.

– IdentificationIdentificationComplex mixtures of hydrocarbonsComplex mixtures of hydrocarbonsConcawe Guidance NotesConcawe Guidance Notes

– Hazard ClassificationHazard ClassificationFFlammablelammable, Toxic for the environment, Toxic for the environment

– UsesUsesFuels and solventsFuels and solvents


For For categories of substances and preparations not categories of substances and preparations not specifically named in Part 1 specifically named in Part 1 of Annex Iof Annex I– Threshold quantities in Columns 2 Threshold quantities in Columns 2

and 3 of Part 2 of Annex Iand 3 of Part 2 of Annex I– If multiple classifications – the lowest If multiple classifications – the lowest

thresholdthreshold– If in preparationsIf in preparations

As long as the preparations posses the As long as the preparations posses the hazardous properties mentionedhazardous properties mentioned– Specific concentrationsSpecific concentrations– Generic concentrationsGeneric concentrations– CLP Directives, to be replaced by the GHS CLP Directives, to be replaced by the GHS

C&L RegulationC&L Regulation

Step 2 – Determining the threshold quantities for the Determining the threshold quantities for the dangerous substancesdangerous substances

ExamplesExamples Examples on identification of dangerous substance within the Examples on identification of dangerous substance within the

scope of Annex I scope of Annex I

Parathion-methylParathion-methyl CAS No CAS No 298-00-0298-00-0 Used as pesticideUsed as pesticide ESIS Data ESIS Data

– General classificationGeneral classification ClasslabClasslab Data Data

– specific concentration limitsspecific concentration limits IUCLID DataIUCLID Data

– LDLD5050 and LC and LC5050 data – 4 mg/kg oral toxicity data – 4 mg/kg oral toxicity

– Annex I classification – very toxic (LDAnnex I classification – very toxic (LD5050 < 25 mg/kg) < 25 mg/kg)

ESIS Data for ESIS Data for Parathion-methylParathion-methyl CAS No CAS No 298-00-0298-00-0

Classlab Data for Classlab Data for Parathion-methylParathion-methyl CAS No CAS No 298-00-0298-00-0

IUCLID Data for IUCLID Data for Parathion-methylParathion-methyl CAS No CAS No 298-00-0298-00-0

ExampleExampleParathion-methylParathion-methyl CAS No CAS No 298-00-0298-00-0

Seveso substanceSeveso substance substance not specifically named in Part 1 substance not specifically named in Part 1 of Annex Iof Annex I Very toxic – threshold quantities 5/25 tVery toxic – threshold quantities 5/25 t Specific concentration limits – classification variesSpecific concentration limits – classification varies

Concentration Classification

C ≥ 25 % T+, N; R24 -26/28 -48/22 -50-53

10 % ≤ C < 25 % T+, N; R21 -26/28 -48/22 -50-53

7 % ≤ C < 10 % T+, N; R21 -26/28 -50-53

3 % ≤ C < 7 % T, N; R21 -23/25 -50-53

1 % ≤ C < 3 % T, N; R23/25 -50-53

0,25 % ≤ C < 1 % Xn, N; R20/22 -50-53

0,1 % ≤ C < 0,25 % Xn, N; R20/22 -51-53

0,025 % ≤ C < 0,1 % N; R51-53

0,0025 % ≤ C < 0,025 % R52-53


For For generic substances with similar properties generic substances with similar properties Toxicity, flammability, and eco-toxicity:Toxicity, flammability, and eco-toxicity: substances and preparations named in Part 1 and classified as toxic or substances and preparations named in Part 1 and classified as toxic or

very toxic, together with substances and preparations falling into very toxic, together with substances and preparations falling into categories 1 or 2;categories 1 or 2;

substances and preparations named in Part 1 and classified as substances and preparations named in Part 1 and classified as oxidising, explosive, flammable, highly flammable, or extremely oxidising, explosive, flammable, highly flammable, or extremely flammable, together with substances and preparations falling into flammable, together with substances and preparations falling into categories 3, 4, 5, 6, 7a, 7b or 8;categories 3, 4, 5, 6, 7a, 7b or 8;

substances and preparations named in Part 1 and classified as substances and preparations named in Part 1 and classified as dangerous for the environment (R50 (including R50/53) or R51/53), dangerous for the environment (R50 (including R50/53) or R51/53), together with substances and preparations falling into categories 9(i) or together with substances and preparations falling into categories 9(i) or 9(ii);9(ii);– Classify if the Sum Classify if the Sum ΣΣ = = q1/QU1 + q2/QU2 + q3/QU3 + q4 /QU4 + q5/QU5 +... q1/QU1 + q2/QU2 + q3/QU3 + q4 /QU4 + q5/QU5 +...

≥≥ 1 1 – Q – threshold quantity for a substance, q – quantity of a substance presentQ – threshold quantity for a substance, q – quantity of a substance present

First for lower tier, if First for lower tier, if ΣΣ ≥≥1, for upper tier1, for upper tier

Step 3 – Addition ruleAddition rule


ExampleExample Chemical plantChemical plant Hazardous substances onsiteHazardous substances onsite

– Chlorine (Part 1 of Annex I, ), Chlorine (Part 1 of Annex I, ), R23R23 R36 R37 R38 R36 R37 R38 R50R50 – 5 t.– 5 t.– PPropylene oxideropylene oxide, , (Part 1 of Annex I, ), (Part 1 of Annex I, ), R12R12 R20 R21 R22 R20 R21 R22

R36 R37 R38 R45 R46R36 R37 R38 R45 R46 – 3 t. – 3 t.– Epichlorhydrin (generic substance) (generic substance) R10R10 R23R23//2424//2525 R34 R34

R43 R45R43 R45 – 25 t. – 25 t.– Chlorobenzene (generic substance) Chlorobenzene (generic substance) R10R10 R20 R21 R22 R20 R21 R22

R51R51//5353 100 t.100 t.– Perchloroethylene (generic substance) Perchloroethylene (generic substance) R40 R40 R51R51//5353 280 280

t.t.



Toxicity– Chlorine and Epichlorhydrin

Addition rule lower tier 5/10 + 25/50 = 1 Addition rule upper tier 5/25 + 25/200 = 0.325 < 1 The establishment is a lower tier Seveso site (for now) for toxic

substances Flammability

– Propylene oxide, Epichlorhydrin and Chlorobenzene Addition rule lower tier 3/5 + 25/5000 + 100/500 = 0.603 < 1 The establishment is not a Seveso site (for now) for flammable

substances Eco-toxicityEco-toxicity

– Chlorine, chlororbenzene and perchloroethylene Addition rule lower tier 5/10 + 100/200 + 300/200 = 2.5 Addition rule upper tier 5/25 + 100/500 + 300/500 = 1 The establishment is an upper tier Seveso site for ecotoxic

substances

The establishment is an upper tier Seveso site!



Dangerous substances present at an establishment only in

quantities equal to or less than 2 % of the relevant qualifying

quantity shall be ignored for the purposes of calculating the

total quantity present if their location within an establishment

is such that it cannot act as an initiator of a major accident

elsewhere on the site

Two qualifying criteria

– 2% of the total quantity

– Location of the substance

The 2 % Rule


Example 1

– Chlorine storage

– A tank of 4t and two storage areas for chlorine bottles for 0.05t

and 0.02 t respectively

– The bigger tank is in the south corner of the site

– The storage areas are adjacent to each other, but are remote

from the main tank, unable to interact

– (0.05 + 0.02)/5 = 1.4 % - less than 2%

– The establishment is not a Seveso site

The 2 % Rule - Examples


Example 2

– LPG storage

– A tank of 49t and two smaller tanks for 1t each

– The bigger tank is in the centre of the site

– The smaller tanks are adjacent to each other, but are remote


– (1 + 1)/50 = 4 % - more than 2%

– The establishment is a Seveso site



Example 3

– LPG storage

– A tank of 49t and two smaller tanks for 1t each

– The bigger tank is in the centre of the site

– The smaller tanks are remote from each other and are remote


– For each small tank 1)/50 = 2 % - equal to 2%

– The establishment is not a Seveso site


Bulgarian Experience in the Bulgarian Experience in the Identification of Dangerous Identification of Dangerous

SubstancesSubstances Started 1999Started 1999 Elaboration of national framework and Elaboration of national framework and

subsequent legislationsubsequent legislation– 2002 – Environmental Protection Act2002 – Environmental Protection Act

Classification of hazardous activities is a duty of the Classification of hazardous activities is a duty of the operatoroperator

– 2000 – Chemicals Act2000 – Chemicals Act Gives classification criteriaGives classification criteria

Elaboration of inventory of possible hazardous Elaboration of inventory of possible hazardous activitiesactivities– Based on inspection results, lists of controlled sites, Based on inspection results, lists of controlled sites,

feedback from industryfeedback from industry– Exclusion of establishments and activities out of the Exclusion of establishments and activities out of the

scope of the Conventionscope of the Convention

Bulgarian Experience in the Bulgarian Experience in the Identification of Dangerous Identification of Dangerous

SubstancesSubstances 2000 - 20022000 - 2002

– Seminars and workshops with the IndustrySeminars and workshops with the Industry– Result – Classification manualResult – Classification manual

identification of seveso sites: practical approach

Documents

exception of chemical

categories of substances

chemical reactions

substances ammonium

thermal processing of

hazardous chemicals

seveso siteclassification

seveso sitestep