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- Hazardous wastes22
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- Hazardous Waste11
- adverse effects11
- Hazardous waste sites9
- Pollution7
- Environmental health6
- Environmental toxicology6
- Medical wastes6
- Refuse Disposal6
- Leukemia in children5
- Chemical industry4
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- Epidemiologic Methods4
- Epidemiology4
- Hazardous substances4
- Health risk assessment4
- Environmental Exposure3
- Incineration3