July 4th fireworks in Central Fresno push fine PM levels off the scale

So a check of the fine particulate matter in Central Fresno on the evening of Jul. 4, 2020 indicates microscopic specks of soot, chemicals and liquid droplets in air measured 150 micrograms per cubic meter (ug/m3) at 10 p.m. corresponding to a ROAR (Real-time Outdoor Activity Risk) Level 5 reading – meaning Very Unhealthy air. … Read more

Adopted rule calls for 300,000 non-polluting trucks, vans on California roads by 2035

In 2014 on American roadways, a total 3.0257 trillion vehicle miles of travel were recorded. Of that amount, 169.83 billion miles that year were tallied in heavy-duty trucks.1 Assuming the calculation is correct, that’s 5.612 percent. In California in 2014, meanwhile, driving miles totaled 332.8572 billion or 11 percent of the 3.0257 trillion total miles … Read more

Dedicated high-speed rail dollars kept in the Valley will simply go farther

This June 16th marks five years since construction on California’s statewide high-speed rail program first began. There are now 4,000 laborers doing bullet-train-related building work in the Golden State’s Central Valley at over three dozen sites. That level of commitment notwithstanding, there are those who think that they know what’s best regarding where yet-unspent dedicated … Read more

With older, gas-fired appliance use unhealthy air in homes is oftentimes found

Natural gas. It is used to dry our clothes, cook our food, heat our water and warm our homes. All true. But, from an air quality standpoint, how clean-burning or unhealthy are the gas-fired appliances that we use? Many, apparently, just don’t make the grade. As far as unhealthy indoor air quality from natural gas-powered … Read more

Wabtec introduces air-contaminant-filtering device for railcar interiors

The below Jun. 1, 2020 press release is from Wabtec Corp. Wabtec Corporation launched an air-filtration innovation, called BlueFilter®, to provide a clean, healthy environment for passengers on metro and trains. The TÜV-tested filter continuously provides fresh and clean air onboard metro and railcars by removing more than 90 percent of contaminants per air cycle. … Read more

At home: Ah, to have that deep-woods pine-forest smell inside!

Self-emptying or self-flushing toilets: Pretty amazing stuff, right? Now, take that and add to it a self-cleaning aspect and a provision for purifying air and what’s been invented is a self-emptying, self-cleaning, smell-removing commode. Who could ask for more?! Did someone say more? On the Air Quality Matters blog from time to time, covered have … Read more

What will it be surface-transport profile-wise, once the pandemic ends? – 2

So, let’s explore this idea some more. Part 1 can be read here. Speaking of which, in the earlier installment it was duly pointed out that sold in the U.S. each year are approximately 17 million new cars with at least 850,000 of those, or five percent, being of the zero-emissions-vehicle variety. Post-pandemic, will that … Read more

Toxic air U.S.: Levels in nine western cities at record high, 150 million affected

If you thought air in the United States was dirtier than it’s been at any other time in the country’s recorded history, that is, before the Corona Virus outbreak, then this wasn’t your imagination running wild. The point is this is fact! And, if you believed the air in nine cities in the west experienced … Read more

With heavy wildfire-smoke inhalation may be heightened heartbeat-stoppage risk: Study

The below is from an American Heart Association Apr. 15, 2020 news release. Exposure to heavy smoke during recent California wildfires raised the risk of out-of-hospital cardiac arrests up to 70%, according to new research published today in the Journal of the American Heart Association, the open access journal of the American Heart Association. Cardiac … Read more

SJV-transport-improvement-road direct; progress made on multiple fronts

In California’s expansive and agriculturally conducive San Joaquin Valley, encompassing eight counties in all, one-in-five children is an asthmatic. According to the California High-Speed Rail Authority highlighting childhood health and freight and passenger train transport and travel in a media release expresses that in the Valley the childhood asthma rate is better than double the … Read more