strategy for air quality improvement in prague josef janota – prague city hall integrated program...
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STRATEGY FOR AIR QUALITY IMPROVEMENT IN
PRAGUEJosef Janota – Prague City Hall
INTEGRATED PROGRAM FOR EMISSIONS REDUCTION
INTEGRATED PROGRAM FOR AIR QUALITY IMPROVEMENTAT THE CITY OF PRAGUE TERRITORY
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PRAGUE STATISTICS
• Territory: 496 km2
• Inhabitants: 1,2 milion
• Number of motor vehicles: 1990 - 430 000 2001 - 760 000
• Altitude: 177 – 400 m above see level
• 14 automatic air quality monitoring stations
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AIR QUALITY DEVELOPMENT IN PRAGUE
• in 90´s Prague succeeded significantly in decreasing
SO2 and dust concentrations
• main problem of air quality in Prague were nitrogen oxides, emissions of which were increasing as a result of dramatic traffic growth
• SO2 concentrations decreased considerably below the
limit values
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Development of SO2 concentrations in 1994 - 2002
AIR QUALITY DEVELOPMENT IN PRAGUE
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Development of NO2 concentrations in 1994 - 2002
AIR QUALITY DEVELOPMENT IN PRAGUE
0
10
20
30
40
50
60
1993 1994 1995 1996 1997 1998 1999 2000 2001 2002
kon
cen
tra
ce [
ug
.m-3
]
Nám. Republiky
Riegrovy sady
Braník
Libuš
Mlynářka
Santinka
Veleslavín
Výstaviště
Kobylisy
Lyčkovo nám.
Vysočany
Počernická
Vršovice
LIMIT
LIMIT
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AIR QUALITY IN PRAGUE IN RELATION TO THE NEW LEGISLATION
• new air quality standards from 2002 with milestones in 2005 and 2010
• at least one of air quality standards is exceeded on 76 % of city territory
• 90 % of Prague inhabitants live there
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PRESENT TIME LEVEL OF YEARLY CONCENTRATIONS OF PM10 IN RELATION TO
LIMITS OF 2002 - 2010
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CONCENTRATIONS DEVELOPMENTIN 1999 - 2003
0
25
50
75
100
1999 2000 2001 2002 2003
7
0
25
50
75
100
1999 2000 2001 2002 2003
6
0
25
50
75
100
1999 2000 2001 2002 2003
0
10
20
30
40
50
1999 2000 2001 2002 2003
0
10
20
30
40
50
1999 2000 2001 2002 20030
10
20
30
40
50
1999 2000 2001 2002 2003
0
25
50
75
100
125
150
1999 2000 2001 2002 2003
0
25
50
75
100
125
150
1999 2000 2001 2002 2003
0
25
50
75
100
125
150
1999 2000 2001 2002 2003
Suspended particles PM10 (36th highest daily average)
NO2
(yearly average)
SO2
(4th highest daily average)
Republic Square Libuš Vysočany
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Solid fuel share
Solid fuel share in the heat consumption
Solid fuel share %
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total emissions
16%2%6%
76%
traffic
NOx emissions
more than 70 % created by traffic
Oxidy dusíku
53%
11%
31%
5%
Osobní automobily
Lehké nákladní automobily
Těžké nákladní automobily
Autobusy
motor cars
light lorries
heavy lorries
buses
NOx emission share
mobile sources
small sources
middle sources
large sources
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0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
18.00
SO2 NOx VOC NH3
emis
e (k
t/ro
k)
Mobilní zdroje
Malé zdroje
Střední zdroje
Velké zdroje
emission ceiling
14,7
3,3
12,8
Structure of emission balance
mobile sources
small sources
middle sources
large sources
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AIR QUALITY IN PRAGUE FROM POINT OF VIEW OF THE NEW LEGISLATION
• in several criteria is the air quality at present time unsatisfied
• from point of view of number of limits exceeding is Prague worst in Czech republic
• in recent years concentrations are slightly increasing
Without corrective measures will not be
possible to meet air quality standards in proper
time, especially for PM10 and polycyclic aromatic
hydrocarbons.
Problems are expected also in meeting of some
emission ceilings, especially for NOx.
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LONG TERM CONCEPTION OF THE AIR PROTECTION
IN THE CITY OF PRAGUE
• elaborated within 2 years, finished in 2002
• in 13 working packages was solved more than 200 partial tasks
• analytic part, conception part
• detail evaluation of all factors having the influence in the air quality in Prague
• proposal of strategy for improvement of the present time state and for possible risk prevention
conception have became the main basis for
programs elaboration
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Model calculations of the air quality
Benzene – yearly average concentrations
2002 2010
PRESENT STATE AND PREDICTION
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MOST IMPORTANT POLLUTANTS
Suspended particles PM10
- limit value exceeding on great part of territory
- significant part of real measured values is created by secondary particles
Polyaromatic hydrocarbons (benzo(a)pyren)
- limit value exceeding on great part of territory of Prague
- most important sources - local heating
Nitrogen dioxide and nitrogen oxides
- limits exceeding in the centre of the city, on main streets and nearby of cement plant at SW suburb
- greatest problems are expected with emission ceiling
- important role in tropospheric ozone creation
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MOST IMPORTANT GROUPS OF SOURCES
Traffic
- main influence to air pollution, limited possibility of regulation
- complex problem of whole net of communications
Small stationary sources
-mostly local heating – elimination of solid fuel burning is necessary
- volatile organic compounds emissions (household use of paintings and dilutors)
Large stationary sources
- good possibility of regulation (integrated permissions), limited number
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PROGRAMS PREPARATION ACORDING TO THE CZECH AIR PROTECTION ACT
long term conception of the air protectionat Prague territory
detail analysisand long term strategyof the air protection
Integrated program of the
emission reduction
Integrated program for air
quality improvement
Basic document: Long term conception of the air protection
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REGIONAL PROGRAM FOR EMISSIONS REDUCTION
REGIONAL PROGRAM FOR AIR QUALITY IMPROVEMENT
Main aims of the programs:
• to meet the regional emission ceiling values in 2010
• to meet air quality limit values which are exceeded at the present time as soon as possible
• to exclude the possibility of future exceeding of limit values and ceilings which are not exceeded at present time
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MEASURES FOR EMISSIONS REDUCTION AND AIR QUALITY IMPROVEMENT
Proposed 25 measures:
•15 for traffic
•5 for stationary sources
•5 legal and organizational
1. Brief characteristics
2. Substantiation
3. Detail description of measure application
4. Responsibility
5. Term of application
6. Cost estimation
7. Benefit estimation
8. Risks
Uniform structure of the measures:
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MEASURES FOR EMISSIONS REDUCTION AND AIR QUALITY IMPROVEMENT
• 12 SHORT TERM MEASURES
• 5 MIDDLE TERM MEASURES
• 8 LONG TERM MESURES
MEASURES BY TIME OF APPLICATION
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Application:
•intensification of quality and quantity of mechanical streets cleaning inclusive of tramway belts
•decreasing of extent of dusty surfaces at the city territory
•consistent checking of vehicle cleaning during construction
DUST REDUCTION IN STREETS AND PUBLIC AREAS
MEASURE EXAMPLES
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MEASURE EXAMPLES
COMMUNICATIONS SYSTEM IMPROVEMENT
Application:
•speed-up the construction of new elements of
communication system (inner and outer circuit) •sequences of streets construction according to its significance for air protection
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MEASURE EXAMPLES
SUPPORT OF QUALITY IN PUBLIC TRANSPORT
Application:
•increasing of transport velocity – separation of tramway lines, special strips for buses
•support of electric traction (tramway, metro)
•integration with regional nets of public transport
•tariffs policy
•integration with railway traffic
•quality of information for travellers - terminals, maps
•support of „park and ride“ parking sites
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REDUCTION OF SOURCES AND DESTINATIONS OF AUTOMOBILE TRANSPORT
Application:
•determination of limits of capacity for new construction
•condition of public transport connection for new construction
•restrictions for construction in areas with limit values excceding
MEASURE EXAMPLES
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RESTRICTIONS OF STREET USE FOR HEAVY TRAFFIC
Application:
•intensive checking and drivers information, reduction of exceptions
•extension of zone with heavy traffic restriction (above 6 tons)
•extension of the time gap for restriction of vehicles above 3,5 ton (7 - 19 hour)
MEASURE EXAMPLES
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PROGRAM OF PUBLIC INFORMATION AND EDUCATION
Application:
• Giving the actual and wide information for public such as:
– air quality and its requirements – necessity of improving measures
– preference of public transport
– healthy risks connected with solid fuel burning
– alternative fuels for motor-cars
MEASURE EXAMPLES
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ENVIRONMENTAL CONDITIONS IN MUNICIPAL CONTRACTS
Application:•setting of conditions for all activities with an influence to the air quality
•only using of vehicles and construction machines with low emission parameters
•strict measures to dust reduction during construction
•using low VOC paintings
•obligatory using of labeled products
•application of energy saving methods and using of the renewable sources
MEASURE EXAMPLES
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PRAGUE CITY HALLRasnovka 8
110 15 Prague 1
tel: +420 236 00 4363 e-mail: [email protected]
fax: +420 236 00 7073
CONTACT