What releases radioactive materials, lead, and arsenic under normal conditions?

What releases radioactive materials, lead, and arsenic under normal conditions?

• A. Nuclear weapons testing
• B. Coal burning
• C. Vehicle exhaust
• D. Biomass burning

Answer: (B)

Coal contains trace amounts of naturally occurring radioactive materials, along with metals such as lead and arsenic. When coal is burned, most of these minerals stay with the combustion residues or are emitted in the flue gas. The ash, especially fly ash, becomes enriched with metals like lead and arsenic, and small amounts of radioactive elements can be released with the exhaust. This makes coal-fired power plants a common source of these pollutants under normal operation. Nuclear weapons tests are not a routine emissions source, and vehicle exhaust or biomass burning do not typically release significant levels of these three together in normal conditions.

Coal contains trace amounts of naturally occurring radioactive materials, along with metals such as lead and arsenic. When coal is burned, most of these minerals stay with the combustion residues or are emitted in the flue gas. The ash, especially fly ash, becomes enriched with metals like lead and arsenic, and small amounts of radioactive elements can be released with the exhaust. This makes coal-fired power plants a common source of these pollutants under normal operation. Nuclear weapons tests are not a routine emissions source, and vehicle exhaust or biomass burning do not typically release significant levels of these three together in normal conditions.