air pollution Correct Answer-one or more substances in the outdoor atmosphere at quantities which are or may be harmful or injurious to human health or welfare, animal or plant life, or property, or unreasonably interfere with the enjoyment of life or property
criteria pollutants Correct Answer-...
ENGR 405: Exam I questions with correct answers
air pollution Correct Answer-one or more substances in the outdoor
atmosphere at quantities which are or may be harmful or injurious to
human health or welfare, animal or plant life, or property, or
unreasonably interfere with the enjoyment of life or property
criteria pollutants Correct Answer-pollutants that have the most
significant effects and sometimes the most significant emissions, so they
have standards applied for them
define "criteria" in criteria pollutants Correct Answer-health-based
information being used to derive the standards
list criteria pollutants Correct Answer-particulate matter (PM2.5 and
smaller and 10 and smaller PM10), SO2, NO2, CO, particulate lead; O3
primary standard Correct Answer-designed to protect human health,
particularly that of sensitive groups
secondary standard Correct Answer-designed to protect public welfare
(visibility, damage to animals, crops, vegetation, and buildings)
primary pollutants Correct Answer-material emitted directly to the
atmosphere
, secondary pollutants Correct Answer-material formed in the atmosphere
only
earlier history (1880s-1910s) Correct Answer-smoke ordinances
1930s-1950s Correct Answer-peak in smoke so control devices and
cleaner fuel
1940s-1950s Correct Answer-pioneering work of Haagen-Smit (father of
air pollution control, photochemical)
event that occurred in 1948 Correct Answer-4-day smog in Donora, PA
that resulted in 20 deaths and 7000 illnesses
event that occurred in 1952 Correct Answer-3-day smog in London that
resulted in 4000 deaths
act passed in 1955 Correct Answer-Air Pollution Control Act, federal
research based, temporary, focus on state level
act passed in 1963 Correct Answer-clean air act, requested by president,
established by federal jurisdiction
act passed in 1965 Correct Answer-Motor Vehicle Air Pollution Control
Act, first federal regulation of vehicular emissions
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