Q.What health and environmental hazards can result from the unscientific, informal recycling of e-waste (for example, open burning of circuit boards or acid leaching to recover metals)?

E-waste contains hazardous substances -- lead and cadmium in circuit boards and batteries, mercury in some older components, and brominated flame retardants in plastic casings -- alongside its recoverable valuable metals. In the informal recycling sector, workers (often without any protective equipment) commonly use crude methods such as open burning of circuit boards to remove plastic and solder and reveal recoverable metal, or acid baths to leach out gold and other metals. These practices release toxic fumes and heavy metals directly into the air, and contaminate the soil and water at the recycling site. Workers exposed this way -- who frequently include children -- face serious, cumulative health hazards, including heavy-metal poisoning, respiratory illness from inhaled fumes, and long-term neurological dam …

Name the specific unsafe methods (open burning, acid leaching) AND the specific hazardous substances (lead, mercury, cadmium) rather than a vague 'e-waste i …

Do not describe e-waste hazards only in terms of environmental pollution -- the direct human health impact on informal recycling workers (of …