Latest Particulate Stories

2011-05-27 08:05:00

Harvard University researchers have quantified the damage caused by pollution produced by idling vehicles on the road, concluding that the United States' 83 largest urban areas had more than 2,200 premature deaths last year, reports Larry Copeland of USA Today. The study also says that $18 billion in public health costs are linked to traffic congestion. "Our estimates of the total public health cost of traffic congestion in the U.S. are likely conservative, in that they consider only the...

2011-04-28 10:29:19

The American Lung Association (ALA) released a report on Wednesday that lists the 25 smoggiest cities in the US, and although improvements in the quality of air have been seen, at least half of the residents remain living under unhealthy air pollution, Reuters reports. The report, titled "State of the Air 2011", credits the Clean Air Act for spearheading most of the improvements in air quality. "The progress the nation has made cleaning up coal-fired power plants, diesel emissions and other...

2011-04-27 07:31:00

FARGO, N.D., April 27, 2011 /PRNewswire-USNewswire/ -- After two consecutive years as the 'cleanest city in America' by the American Lung Association's annual "State of the Air Report" on air pollution, Fargo lost its title this year to Honolulu, Hawaii and Santa Fe, New Mexico. It's not all bad news for North Dakota. Its grades for the eight counties with air quality monitors was again very good - all "A" marks for ozone and particulate pollution, with the exception of two "B" grades for...

2011-04-27 07:31:00

SAINT PAUL, Minn., April 27, 2011 /PRNewswire-USNewswire/ -- Minnesota's annual report card on air quality is in, and the grades are not good, says the American Lung Association in Minnesota. The American Lung Association State of the Air Report gives "A," "B," "C," "D" and "F" grades for air quality in the 18 Minnesota counties with enough data to be scored. The report is based on data collected and confirmed by the U.S. Environmental Protection Agency during the years 2007-2009. In...

2011-04-17 00:00:36

The US EPA has ruled that Partial Flow Dilution (PFD) technology, as demonstrated in conclusive testing with Sierra Instrument's BG®3, is now legally recognized as an alternative to traditional Constant Volume Sampling (CVS). The new ruling in favor of light and heavy duty engine particulate emissions certification over transient test cycles can be found in 40 CFR part 1065 of the United States Federal Register. Monterey, CA (Vocus/PRWEB) April 16, 2011 The US EPA has ruled that Partial...

2011-04-11 22:24:48

Recent radical changes in air quality regulations in Delhi, India, have had a substantial positive effect on the health of city residents, according to new research co-authored by Andrew Foster, professor of economics and community health and an associate at Brown's Population Studies and Training Center. The findings from this first systematic study quantifying the heath effects of Delhi's environmental interventions are published in the online issue of Atmospheric Environment. The research...

2011-04-07 14:28:45

Study finds brain damage typical of aging and memory loss after short-term exposure to vehicle pollution If mice commuted, their brains might find it progressively harder to navigate the maze of Los Angeles freeways. A new study reveals that after short-term exposure to vehicle pollution, mice showed significant brain damage "” including signs associated with memory loss and Alzheimer's disease. The mind-numbing toxin is not an exhaust gas, but a mix of tiny particles from burning of...

2011-03-24 21:02:00

UBC chemists have developed a new model to predict the optical properties of non-conducting ultra-fine particles. The finding could help inform the design of tailored nano-structures, and be of utility in a wide range of fields, including the remote sensing of atmospheric pollutants and the study of cosmic dust formation. Aerosols and nano-particles play a key role in atmospheric processes as industrial pollutants, in interstellar chemistry and in drug delivery systems, and have become an...

2011-03-08 04:30:00

WASHINGTON, March 8, 2011 /PRNewswire-USNewswire/ -- The American Lung Association today released Toxic Air: The Case for Cleaning Up Coal-fired Power Plants, a new report that documents the range of hazardous air pollutants emitted from power plants and the urgent need to clean them up to protect public health. The report highlights the wide range of uncontrolled pollutants from these plants including: toxic metals and metal-like substances such as arsenic and lead; mercury; dioxins;...

2011-03-01 12:18:00

PLYMOUTH, Mich., March 1, 2011 /PRNewswire/ -- AVL announced today its Smart Sampler particulate matter (PM) partial flow sampling system meets the most recent U.S. Environmental Protection Agency (EPA) emission measurement criteria, allowing heavy-duty diesel engine manufacturers a more compact and cost-effective solution for transient test cycle PM measurement. Emissions of particulates from internal combustion engines are globally restricted by numerous regulatory bodies, each with...

Word of the Day
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'