Air quality monitoring, regulations credited for cleaner air

The following excerpt originally appeared on the Discovery News website. 

Satellite data shows a 32 percent decrease in nitrogen dioxide levels over New York City since the mid-2000s. Credit: NASA

 

If you get depressed about the plethora of news about environmental woes, here’s a bit of news that should make you breathe easier.

NASA has just released new images from its Aura satellite, which was launched back in 2004 to study the chemistry of the Earth’s atmosphere. They show that over the past decade, the amount of nitrogen dioxide — a yellow-brown gas produced by gasoline-burning car engines and coal-burning electrical power plants that can cause respiratory problems — has decreased. That’s true, even though the U.S. population has increased and there are more cars on the road.

The satellite observations show that even New York City, the most densely populous area in the United States, is making major progress in reducing N02 pollution. The city that never sleeps has been working aggressively over the past decade to monitor and reduce air pollution.

In the late 2000s, New York began mounting portable air-sampling devices on light poles in all five boroughs. Last year, the city began a pilot program to test quick-charging electric-powered taxis.

 

Read the full article here.

 

 

Marketplace.org – LA Smog: the battle against air pollution

by Sarah Gardner for Marketplace.org

“If you have to live with smog, you might as well capitalize on it. In downtown Los Angeles in 1954, you could buy a balloon-full of “clean air.” Today it’s sold by the can-full in smoggy Beijing.” – Los Angeles Public Library Photo Collection

When we see photos of Beijing shrouded in a veil of thick smog, we’re horrified. How can the Chinese live with such terrible air pollution?

One answer is: Americans did. Back in the 1950s and ’60s, people in Los Angeles breathed some of the dirtiest air in the world.

Los Angeles still has smog, of course, but it’s not nearly as bad as it used to be. How did the city get its act together?

It took decades. Los Angeles had its first real smog attack during World War II, a smog strong enough that some people suspected a Japanese chemical attack. But it wasn’t until 1975 that the U.S. required new cars to have catalytic converters, “the key piece of technology that allowed everything to change,” according to Mary Nichols, chairman of California’s Air Resources Board. In between, there were frustrating years of scientific research, industry denial, politics, protest and an unwavering attachment to the automobile.

Los Angeles, like Denver and Mexico City, is a natural pollution trap. The surrounding mountains combine with temperature inversions to trap dirty air. Early on, smoke and fumes from steel and chemical plants, oil refineries and backyard trash incinerators – legal until the late 1950s – plagued the city.

As did pollution from automobiles. Los Angeles County had more than a million vehicles on the road as early as 1940. Just 10 years later, that number more than doubled as the post-war LA population and economy boomed. City leaders, including the Chamber of Commerce, realized that air pollution threatened tourism, real estate and agriculture.

“They’d promoted Los Angeles as this clean, healthy place,” said historian Sarah Elkind, author of “How Local Politics Shape Federal Policy: Business, Power, and the Environment in Twentieth Century Los Angeles.” So in 1947, the county established an Air Pollution Control District, the first of its kind.

Continue reading this article here.

Curbing air pollution, one bamboo bike at a time

This article was originally posted at http://www.dw.de/curbing-air-pollution-one-bamboo-bike-at-a-time/a-17700515.

 

Manila is known more for its gridlocked traffic jams and air pollution than for green spaces or pedestrianized walkways. Bamboo bikes could change that by curbing emissions and helping pave the way to go green.

 

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Visitors on bikes cycle past Manila’s historical area of Intramuros – from the secret gardens scattered between Fort Santiago to lookout points to hear tales of pirates and revolutions. For the next two and a half hours, people ride on bikes made from bamboo.

Bryan McClelland, a 29-year-old Filipino-American, is the man behind the concept of Bambikes, the company that creates bikes made from bamboo in the Philippines. He founded Bambikes in 2010, but has just recently launched his bamboo bike tours in Manila, the capital of the Philippines.

“There’s a growing global trend of biking. A lot of different cities now have bike tours because it’s a great way to interact with the environment and city,” McClelland explained. “Intramuros seemed like the natural place in Manila to start the tours. It is the oldest part of the city has some cultural heritage and is a preserved environment.”

Continue reading here. 

REUTERS: Air pollution linked to cognitive decline in later years

BY SHEREEN LEHMAN FOR REUTERS

(originally posted to http://www.reuters.com)

(Reuters Health) – The tiny particles in vehicle exhaust and other sources of air pollution may hasten cognitive decline in older adults, according to a new U. S. study.

 

“We decided to examine the link between air pollution and cognitive function in older adults because there is growing evidence that fine particulate matter air pollution affects brain health and development, but relatively little attention has been given to what this means for the aging brain,” said Jennifer Ailshire, who co-wrote the report.

 

Ailshire is with the Center for Biodemography and Population Health and the Andrus Gerontology Center at the University of Southern California in Los Angeles.

 

She, along with Philippa Clarke of the Institute for Social Research at the University of Michigan, Ann Arbor, say that based on their results, improvements in air quality may be an important strategy for reducing age-related cognitive decline.

 

Continue reading the full article on Reuters. 

UNM researcher studies link between air pollution and cardiovascular disease

By Luke Frank for UNM Health Sciences Center NEWSbeat

Every day, each of us breathes in dangerous toxins like carbon monoxide, ground-level ozone, lead, nitrogen dioxide, particulate matter and sulfur dioxide. That troubles Matthew Campen, who’s been studying such common pollutants as engine exhaust and wood, coal and tobacco smoke since 1991.

Campen knows these toxins cause serious damage to the human body beyond the lungs. “Air pollution is associated not just with respiratory diseases, but also cardiovascular disease,” he says. “Epidemiological studies have long shown that there are increased cardiovascular deaths on bad air pollution days. But it’s unclear why something you breathe in – that doesn’t really physically get past the lungs – causes vascular disease.”

So Campen and his team are digging deeper. “From a public health standpoint, it’s important that we learn more about how the everyday pollutants we’re all exposed to affect us and remain aware that highway-related emissions are still a significant health problem,” he says.

Campen suspects that when we inhale air pollutants, potent particulates and gases somehow alter our blood chemistry, causing vascular inflammation. His team is investigating the biological pathways these toxins exploit to access the vascular system, and ultimately how they lead to cardiovascular insult. “We’re taking what we’re learning from air pollution and lung disease and linking it back to coronary artery disease,” he explains.

“I’m a discovery person – I look for the ‘eureka’ moment,” Campen says. “I live for designing studies where we have a hypothesis, we do an experiment and we prove it. Our biggest challenge is to ensure that what we see at the molecular level actually is something that translates to humans.”

Studies have shown that when an air pollutant bypasses the lungs to reach a blood vessel, it’s not as damaging as when it is inhaled, Campen says. “We’ve also discovered a blood-borne signal originating in the lung – but found outside of the lung – that causes inflammation in blood vessels and the brain. So there’s something essential to various pollutants entering the lungs first.”

Campen believes that damaged proteins or fragments of proteins he calls “molecular shrapnel” are formed following exposure to toxic pollutants. When they breach the lungs and enter the blood stream, the cells lining the blood vessels become irritated. “They think the molecular shrapnel is a sign of damage,” he says, “so they respond appropriately with inflammation, which can contribute to long-term heart disease.”

No single chemical in air pollution appears to be responsible, Campen says. “When gaseous and particulate portions of exhaust combine, gases adhere to particles, which seems to make it more toxic to the cardiovascular system,” he says. “We need to know which pollutants are most potent, how they affect other parts of the body, and which people are most susceptible.”

The good news, Campen says, is that the health risks from air pollution can be reduced. “Try not to locate or exercise in industrial areas or near transportation corridors,” he suggests. Genetics and nutrition also play a role. “We think that polyunsaturated fats already present in the lungs help protect the lungs and body from generating these ‘molecular shrapnel’ – these fragments of proteins,” he says. “So a diet of polyunsaturated fats is good for our lungs. Vitamin C also is a great defense for your lungs.”

Thank you to everyone who donated during the Big Payback!

The Clean Air Partnership was thrilled to be a part of the Community Foundation of Middle Tennessee’s inaugural 24-hour giving campaign, The BigPayback! It truly was a wonderful way for Middle Tennesseans to give back to the hundreds of non-profits who serve our community every day. We are pleased to report that the event was a tremendous success! In total, $1,492,492.50 was raised in just 24 hours!

We would like to thank everyone who took the time to make a donation to CAP. Having never participated in anything like this before, we had no idea what to expect. We were blown away by the support we received. By the end of the day, you generously donated a total of $435 to help individuals and businesses learn more about the simple steps they can take to improve the air we breathe.

So, the thank you notes are being written and a special package is being sent to those who reached out to support us! Again, THANK YOU!

 

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Now’s the time – The Big Payback is here!

It’s here.

The Big Payback is this Tuesday, May 6!

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The Clean Air Partnership is very excited about this opportunity in our community. Thanks to supporters like you, we are able to teach individuals and businesses alike about the simple steps we can all take every day to improve the air we breathe in Middle Tennessee. 

 

Get involved.

Here are ways you can donate Tuesday, May 6:

 

Starting at 6:00 a.m. tomorrow morning, visit the CAP page on the Big Payback website and complete the easy donation steps. You can also visit the CAP website at www.itscleartome.org  and click on the big blue DONATE NOW cloud anywhere on the site!

 

Thank you for your support during the Big Payback and all year long!

 

More About The Big Payback…

The Big Payback is a community-wide, online giving day hosted by The Community Foundation of Middle Tennessee on May 6, 2014. This charitable giving day will help our organization raise much-needed unrestricted dollars and celebrate the good work of all Middle Tennessee nonprofits.

 

For 24 hours, beginning at 6 a.m. on Tuesday, May 6 to 6 a.m. on Wednesday, May 7, donors can make gifts to participating nonprofits that are located in or provide services in the 40 counties of Middle Tennessee. We will be eligible for incentives, bonuses and additional prizes throughout the day so your gift would be greatly appreciated.

 

For more information, please visit www.TheBigPayback.org.

 

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