chemical hazards1
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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
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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.
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For the majorityof chemicalsused in theworkplace, littleor nothing isknown abouttheir possibleimmediate or
long-term healtheffects.
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Chemicals thatare dumpedinto the
environmentcan causeserious humanandenvironmentalproblems.
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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.).
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TYPES OF TOXIC EFFECTS CAUSEDBY INDUSTRIAL CHEMICALS
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EXPOSURE TO TOXIC CHEMICALSCAN LEAD TO ACCIDENTS
Workingaroundchemicals
without theproperprotectionsin place canlead toseriousaccidents.
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TYPES OF CHEMICALS FOUND INTHE WORKPLACE
SOLIDS
Chemicals
can changetheirphysicalform, e.g.
wood intosawdust.
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DUSTS
Dust in theworkplace should
be kept at orbelow safelevels.If you must weara mask, be sure itis the correcttype for theparticular hazard.
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LIQUIDS
Mists and
vapoursare ofteninvisible.
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EFFECTS OF CHEMICALS ON THE
ENVIRONMENT Manyemployers do
not dispose ofchemicalwastessafely.
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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.
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Chemicals have symbols to show their possiblehazards.
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THANK YOU