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Car engines produce several pollutants, including carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbons (HC), and particulate matter (PM). Carbon monoxide is a toxic gas formed from incomplete combustion, while nitrogen oxides contribute to smog and acid rain. Hydrocarbons, which include unburned fuel, can lead to ground-level ozone formation. Particulate matter consists of tiny particles that can harm respiratory health and contribute to environmental degradation.

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1w ago

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