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Common Soil Pollutants

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Plastics

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Source: Littering, landfill waste, and degradation of plastic products. Impact: Soil structure and fertility can be affected, along with harm to soil organisms and potential toxic residue.

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Arsenic (As)

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Source: Pesticides, wood preservatives, and mining. Impact: Can contaminate soil and groundwater, and is toxic to plants, animals, and humans even at low concentrations.

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Lead (Pb)

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Source: Lead-acid batteries, paint, and industrial emissions. Impact: Causes soil contamination that can lead to plant toxicity and pose health risks to animals and humans upon exposure.

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Petroleum Hydrocarbons

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Source: Oil spills, underground storage tank leaks, and auto exhaust. Impact: Can degrade soil quality, harm microorganisms, and poses a risk to human health through bioaccumulation.

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Mercury (Hg)

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Source: Coal combustion, industrial processes, and waste incineration. Impact: Persistent environmental contaminant that can lead to bioaccumulation in the food web and serious health effects.

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Cadmium (Cd)

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Source: Mining, smelting, and the manufacturing of batteries. Impact: Can cause soil and water contamination and bioaccumulate in plants, leading to toxicity in the food chain.

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Asbestos

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Source: Construction materials and insulation products. Impact: Causes contamination when materials break down, and fibers may pose serious respiratory health risks.

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Polychlorinated Biphenyls (PCBs)

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Source: Manufactured products like electrical equipment, but now mostly found in legacy contamination. Impact: Resistant to biodegradation and can accumulate in organisms, causing health risks.

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DDT (Dichlorodiphenyltrichloroethane)

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Source: A now-banned pesticide, but legacy effects persist in soil. Impact: Persistent organic pollutant that can accumulate in fatty tissue and lead to reproductive and developmental problems.

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Nitrates (NO3-)

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Source: Agricultural fertilizers and waste management systems. Impact: Can lead to soil nutrient imbalance, contaminating water supplies and causing health issues like 'blue baby syndrome'.

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