Discourse for all interested in all things air-quality related
I understand that in the world there are some 1 billion motorized vehicles. That may sound like a lot but what it works out to on average is 1 vehicle for every 7 people essentially. In the United States, on the other hand, the ratio is a lot tighter. On average, that’s roughly 1 motor … Read more
As we saw here on the Air Quality Matters blog on Jan. 13, 2021 in the post: “The respective gain, dip in light-duty vehicle travel miles, fuel-economy in America and what’s driving the change,” there were increases in aggregate light-duty vehicle (LDV) road-travel miles (VMT) 2019 versus 2018, and adding injury to insult was the … Read more
As reported in a ScienceBlog post dated Jan. 7, 2021, in 2020, due to the lockdowns connected with the coronavirus pandemic, this caused emissions of carbon dioxide in the atmosphere to drop by seven percent. The dip is temporary as atmospheric carbon dioxide levels are expected to bounce back to 2019 levels when the economy … Read more
I can’t help but think back to when I was an editorial associate for a Fresno, California-based publisher. This was a step up from the copywriter assignment that I had had previously. The person who had occupied the then editorial associate spot had just recently quit. So, with no one in charge of magazine editorial … Read more
The below Jan. 4, 2021 news release is from Burlington Northern Santa Fe Railway. BNSF Railway Company … and Wabtec’s … exploration of the future potential of battery-electric locomotives crosses another significant milestone this week as they begin testing the technology in revenue service between Barstow and Stockton, California. As BNSF seeks ways to further … Read more
California can be credited with many air-quality-improvement firsts. Listed among these is a waiver granted by the fed that allowed the state to establish its own more stringent light-duty vehicle tailpipe-emissions standards, that is, apart from those prescribed for the rest of the U.S. In an Oct. 19, 2020 news release, meanwhile, the California Environmental … Read more
Ozone (O3) is a colorless but not odorless gas. When ignited, ozone gives off a chlorine-bleach-like odor. So, obviously, based on this, there is a point at which ozone ignites, and it is when this ignition point is reached that the chlorine-bleachish smell from the ozone is produced and released. It is in this sense … Read more
The below Dec. 8, 2020 press release is from the Environmental Defense Fund. A new report from Environmental Defense Fund using emissions data from Rhodium Group finds that U.S. states with climate commitments are not on track to bring their emissions down consistent with science-based trajectories for 2030. According to the Intergovernmental Panel on Climate … Read more
Scientists are adept, expert, highly proficient at what they do and, what scientists do in the scientific sense is to investigate. Science, meanwhile, involves investigation. Early observations Thinking back to high school biology and chemistry classes, we students were required to have a notebook to take “notes” of what was observed in conducted lab exercises. … Read more
An internal combustion engine is an internal combustion engine is an internal combustion engine. And like any working physical object it has limitations. Fact is, whether fueled by gasoline, kerosene, alcohol, ethanol, waste vegetable oil, natural gas (be it natural, renewable, compressed, liquefied) or even propane, these engines pollute. And as long as they are … Read more