By Sissi Ge Sabrina Wong

Outline introduction Sources of chemical pollution The effect of chemical pollution 1 The effect of chemical pollution 2 Statistics What can we do to prevent chemical pollution Chemical pollution in Los Angeles

Introduction We use tens of thousands of chemicals every day chemicals are important to having a good life Important to national economy BUT chemicals can be bad for humans and environment

Sources of chemical pollution Domestic sewage Industrial discharges Seepage from waste sites Atmospheric fallout Domestic run-off Accidents and spills at sea Operational discharges from oil rigs Mining discharges Agricultural run-off

The effect of chemical pollution neurological toxins harm a child’s nervous system Developmental toxins affect the development a fetus Fetus structural or functional abnormalities Retardation death

The effect of chemical pollution--lead Enter system through food, water and air associated with obvious and serious clinical problems millions of American children have elevated blood lead levels millions children’s blood lead levels greater than 0.72 mmol/L.

Statistic mercury-contaminated fish damaging the brain development of children Prenatal affect brain development more lead in children’s blood than the currently accepted level affect behavior and learning Breakdown products of chlorpyrifos recently banned 90 percent of children tested recently in a Minnesota study.

What can we do to prevent chemical pollution? Try and buy organic produce, this has not been treated with chemicals

What can we do to prevent chemical pollution? Try and reduce the amount of chemicals used in the home, such as fly sprays, detergents and weed killers

What can we do to prevent chemical pollution? Try and avoid plastic packaging, when incinerated it releases harmful chemicals

Chemical pollution in Los Angeles The top polluter-Exxonmobil Oil Corp. Torrance Refy Major pollutants-Ammonia 4 percent of houses in Los Angeles County have a high risk of lead hazards 11 Superfund sites in Los Angeles County caused contamination of drinking water sources

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