Discourse for all interested in all things air-quality related
With wildfires raging in many parts of the western U.S. and with smoke from the Creek Fire in the Sierra National Forest flowing down into California’s central San Joaquin Valley darkening skies, turning sun-ups and sunsets red and impacting health including mine, I can’t help but be reminded of just how important clean air is … Read more
Where avoiding polluted air goes, roadway users just can’t seem to catch a break. I mean, while out on the road we’re exposed to air toxics left, right, up, down, front, back, you name it – all ways but loose it seems. Tailpipe pollution or what is more commonly referred to as exhaust. Bits and … Read more
The below Sept. 2, 2020 news release is from Yale University. Asphalt is a near-ubiquitous substance — it’s found in roads, on roofs and in driveways — but its chemical emissions rarely figure into urban air quality management plans. A new study finds that asphalt is a significant source of air pollutants in urban areas, … Read more
Strong evidence suggests there is a link between air pollution and compromised gut health. This topic was first explored on the Air Quality Matters blog on Feb. 26, 2014 in the post: “Air pollution, digestive tract disorders and the connection between them.” Since that time, some important developments have surfaced in the academic, medical and … Read more
The below Aug. 27, 2020 press release is from the California Environmental Protection Agency Air Resources Board. The California Air Resources Board today approved a new regulation designed to further reduce pollution from ocean-going vessels while docked at California’s busiest ports. The rule builds on progress achieved by the groundbreaking At-Berth Regulation adopted in 2007. … Read more
A recent comment to the Air Quality Matters post “Why opacity cannot be the singular clean-air determinant” reads: “Climate stories have been dominating worldwide headlines in recent months. It seems that now more than ever, we are becoming increasingly aware of the effect of pollution on both our environment and on our health.” Yes they … Read more
There are three distinct possibilities: There is evidence that climate change has altered the concentration or level of pollution in air The evidence of the effect climate change has on the concentration or level of pollution in air is lacking Climate change has no influence on pollution in air period The American Lung Association seems … Read more
Between roughly 1850 and the present day, the trend in global mean surface temperature (GMST) has, generally speaking, been positive, meaning the GMST has been rising. Interestingly, though, from 1940 to 1980 GMST stabilized. (See temperature plot at bottom). Incidentally, as reported by NASA’s Earth Observatory the GMST has increased a total of 0.7 degrees … Read more
The below Jul. 22, 2020 press release is from OptiFuel Systems BEAUFORT, SC – July 22, 2020 – OptiFuel Systems (“OptiFuel”), a system integrator of Cummins and BAE Systems hybrid power products for decarbonizing the rail, marine, and microgrid power market, is in the process of finalizing a $2.6 million U.S. Department of Energy (DOE) … Read more
The Fresno Bee on Dec. 16, 2007 introduced its groundbreaking Special Report Fighting For Air. This source was referenced here before. Its mention is important from the standpoint that at that time air quality in California’s Central Valley was a big deal. And just how big a deal was it? Between 2004 and 2007, according … Read more