Word: smog
(lookup in dictionary)
(lookup stats)
Dates: during 1990-1999
Sort By: most recent first
(reverse)
Despite its beneficial effects, tropospheric ozone has gained far more publicity for its role as a major contributor to air pollution and smog in Los Angeles and other large cities...
Nowhere is pollution more palpable than in Mexico City. When the wind is still, the fumes of 3 million cars and 35,000 industrial sites become trapped by the high ring of mountains that surrounds the city. Last February a cloud of smog pushed ozone readings above 0.35 parts per million on some days, severe enough to harm even healthy people and four times the level considered safe under, say, California law. In recent years Mexico City has started to shut down polluting factories, introduce lead-free fuels, get rid of diesel- powered buses, mandate emission controls on new cars...
...what?" the ignorant masses want to What white sandy beaches? How about the smog-filled expressways and crime-ridden neighborhoods of the Motor City...
...preservation of this country's natural resources and scenic areas with a productive, well-run economy could certainly woo voters who find it difficult to decide between the candidates on other issues. And this time around, the choice for president based on environmental concerns is as clear as a smog-free November...
...good reason to issue the new rules. More than 20 years after the government began requiring annual emissions tests for many cars, half of the smog and 90% of the carbon monoxide in the air still pours out of tail pipes; the rest comes mainly from the smokestacks of factories and oil refineries. The new regulations could reduce smog-producing emissions and carbon monoxide pollution from vehicles by 30% in many cities. But repairs to pass the test could cost drivers from $25 to $450, a stiff increase from the present average of $50 to $75. (Anyone whose car still...