July 11, 2013 |
Air quality in the Las Vegas area, which had been adversely affected by a nearby wildfire, improved Thursday, prompting officials to downgrade an alert from unhealthful to moderate. Conditions are expected to remain that way through the weekend. More good news for firefighters and weekend Vegas visitors: Thunderstorms predicted for Thursday could cleanse the air --but the storm also could create a new threat. Smoke from the Carpenter 1 fire, which grew overnight to almost 28,000 acres in the Spring Mountains northwest of the city, could pose a threat largely to at-risk individuals, such as children, the elderly and those with respiratory ailments, officials said.
February 2, 2013 |
BEIJING - Bad air is good news for many Chinese entrepreneurs. From gigantic domes that keep out pollution to face masks with fancy fiber filters, purifiers and even canned air, Chinese businesses are trying to find a way to market that most elusive commodity: clean air. An unprecedented wave of pollution throughout China (dubbed the "airpocalypse" or "airmageddon" by headline writers) has spawned an almost entirely new industry. The biggest ticket item is a huge dome that looks like a cross between the Biosphere and an overgrown wedding tent.
January 12, 2013
Re "Joining the EPA's war on soot," Editorial, Jan. 2 The Times notes that "coal plants and diesel engines have begun the work of reducing soot" but left out how much has been accomplished. According to the California Air Resources Board, particulate-matter emissions from heavy-duty diesel trucks declined from 7.5% of all such emissions in the entire state in 1990 to 3.8% in 2008 and will be just 1.6% in 2020. The diesel truck share of particulate-matter emissions in the South Coast Air Basin decreased from 7% in 2005 to 3% in 2011.
December 4, 2012 |
A new study links even small reductions in fine particle air pollution to increased life expectancy. Researchers who compared data from 545 counties across the U.S., including many in California, found that a drop in fine particulate matter , known as PM2.5, between 2000 and 2007 corresponded with an average rise in life expectancy of 0.35 of a year. The study, led by researchers at the Harvard School of Public Health, is described as the largest to date to find public health benefits from ongoing reductions in U.S. air pollution levels.
CALIFORNIA | LOCAL
March 9, 2012 |
Silver Lake residents can't wait for this construction job to bite the dust. More than two dozen residents living along the path of a $40-million water pipe project say they are suffering respiratory problems from particulate matter stirred up by construction trucks and heavy-duty trenching machines. The Los Angeles Department of Water and Power is replacing a massive neighborhood water conduit as part of a larger, federally mandated plan to retire the Silver Lake and Ivanhoe reservoirs, which are exposed to airborne contaminants.
December 7, 2011 |
Whether it's fog or smog, thousands of people have been delayed during the last few days by the almost-opaque air around Beijing Capital International Airport. The delays since Sunday evening at one of the busiest, most modern airports in the world raise questions about whether air pollution in China has gotten bad enough to derail the country's economic growth. Nearly 1,000 flights have been canceled and 10 highways in northern China had to be closed due to lack of visibility.