8/2/2019 Chemical Hazards1

1/14

GROUP MEMBERS

MOHD YASHIM WONG FA09007

CHE ENGKU NUZUWAL IKRAM FA09081MOHD SYAIFIL HAKIMIN BIN MOHAMAD SKRI FA10051MOHD SYAHMI BIN MOHD NONG FA09090NIK MOHD HAFIZ AIMAN B. NIK HARON FA09026MUHAMMAD SYUKUR B. NORMAN FA09019

8/2/2019 Chemical Hazards1

2/14

DEFINITION

A chemical hazard arises from contamination of anarea with harmful or potentially harmful chemicals.Possible sources of chemical hazards include theburning of fossils, materials and chemicals used inconstruction and industry, pollution of theenvironment and water supply, chemical spillages,industrial accidents, and the deliberate release oftoxic materials.

8/2/2019 Chemical Hazards1

3/14

For the majorityof chemicalsused in theworkplace, littleor nothing isknown abouttheir possibleimmediate or

long-term healtheffects.

8/2/2019 Chemical Hazards1

4/14

Chemicals thatare dumpedinto the

environmentcan causeserious humanandenvironmentalproblems.

8/2/2019 Chemical Hazards1

5/14

HEALTH EFFECTS

There are a variety of chemicals that are commonlyused in industry. Industrial chemicals can bedescribed in a number of ways, for example by theireffect on the worker (whether the chemical iscorrosive or causes dermatitis, etc.), or by thephysical form of the chemical (that is, whether it is adust, fume, vapour, gas, etc.).

8/2/2019 Chemical Hazards1

6/14

TYPES OF TOXIC EFFECTS CAUSEDBY INDUSTRIAL CHEMICALS

8/2/2019 Chemical Hazards1

7/14

EXPOSURE TO TOXIC CHEMICALSCAN LEAD TO ACCIDENTS

Workingaroundchemicals

without theproperprotectionsin place canlead toseriousaccidents.

8/2/2019 Chemical Hazards1

8/14

TYPES OF CHEMICALS FOUND INTHE WORKPLACE

SOLIDS

Chemicals

can changetheirphysicalform, e.g.

wood intosawdust.

8/2/2019 Chemical Hazards1

9/14

DUSTS

Dust in theworkplace should

be kept at orbelow safelevels.If you must weara mask, be sure itis the correcttype for theparticular hazard.

8/2/2019 Chemical Hazards1

10/14

LIQUIDS

Mists and

vapoursare ofteninvisible.

8/2/2019 Chemical Hazards1

11/14

EFFECTS OF CHEMICALS ON THE

ENVIRONMENT Manyemployers do

not dispose ofchemicalwastessafely.

8/2/2019 Chemical Hazards1

12/14

EFFECT CHEMICAL WASTE

Many employers are not aware of the hazards associatedwith toxic chemicals and often do not know how todispose of chemical wastes safely. (Employers also needto be educated about chemical hazards.) As a result,these employers often simply dump waste chemicalsinto the environment. Convenient dumping grounds arethe ocean, rivers, lakes, fields, roadsides, etc.Sometimes these dumping grounds are right in thecommunity where you and your family live and work.Toxic chemicals which are improperly disposed of mayeventually end up in your drinking water, in the placeswhere your children play, in the soil where your food isgrown, etc.

8/2/2019 Chemical Hazards1

13/14

Chemicals have symbols to show their possiblehazards.

8/2/2019 Chemical Hazards1

14/14

THANK YOU