Chapter 16 review questions
1.)Primary air pollutants are those released directly into the air and are harmful. Secondary air pollutants are those that become harmful when they reach the air, or combine with oxygen and transform.
2.)The seven major air pollutants are sulfur dioxide, carbon monoxide, particulates, hydrocarbons, nitrogen oxides, photochemical oxidants, and lead. These contribute to the largest amount of air degradation. Six new ones have been added.
3.)Mold is the most prevolent indoor pollutant, along with radon, and uranium. Formaldehyde is the biggest global problem.
4.)Acid desposition is the deposition of wet acidic solutions or dry acidic particles from the air. It degrades building sides and walls. Acid rain is the cause.
5.)Occurs when a stable layer of warmer air overlays cooler air, reversing the normal temperature decline with increasing height and preventing convection currents from dispersing pollutants.
6.)Ambient air is the air around us. Stratospheric ozone is classified as levels over the South Pole were dropping precipitously during Sept. and Oct. every year as the sun reappears at the end of the long polar winter. Colder temperatures in Antartica, and increased amounts of greenhouse gases have degraded the ozone.
7.)Long range air pollution transport is the mass of air pollution that hovers around a particular country. Industrial countries like parts of the US and Mexico.
8.)New source review is to grandfather existing harmful systems in the economy but putting laws into effect that later models need to meets EPA regulations on environmental safety.
9.)Lead has fallen by 98%, while Nitrogen Oxide hasn’t decreased much.
10.)Factories in China have yet to put controls of their factories; they have more than 40,000 and none are regulated.
