Which of the following is a major secondary pollutant?

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Study for the Dual Enrollment Environmental Science Test. Prepare with flashcards and multiple choice questions, complete with hints and detailed explanations. Get ready for your exam!

Multiple Choice

Which of the following is a major secondary pollutant?

Explanation:
Secondary pollutants are created by chemical reactions in the atmosphere rather than being released directly. Ground-level ozone is a classic example: sunlight drives reactions between nitrogen oxides and volatile organic compounds, producing ozone in the air we breathe. That makes it a major secondary pollutant and a central part of smog that can harm lungs and ecosystems. In contrast, mercury and lead are typically emitted directly as pollutants, and while particulate matter can come from both direct emissions and atmospheric reactions, the most widely recognized secondary pollutant among the options is ozone.

Secondary pollutants are created by chemical reactions in the atmosphere rather than being released directly. Ground-level ozone is a classic example: sunlight drives reactions between nitrogen oxides and volatile organic compounds, producing ozone in the air we breathe. That makes it a major secondary pollutant and a central part of smog that can harm lungs and ecosystems. In contrast, mercury and lead are typically emitted directly as pollutants, and while particulate matter can come from both direct emissions and atmospheric reactions, the most widely recognized secondary pollutant among the options is ozone.

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