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|Thursday, May 01, 2014|
BY JOE ROJAS-BURKE | OB BLOGGER
Given Oregon’s green reputation, it’s jarring to see how badly the state ranks on measures of injustice in exposure to air pollution.
Environmental engineering professor Julian Marshall and colleagues at the University of Minnesota developed a high-resolution dataset on a major class of air pollutant – nitrogen oxides – and they used it to compare how neighborhood exposures differ according to the socioeconomic status and race or ethnicity of residents.
Much of the Willamette Valley scored as bad or worse than Southern California in the two measures of environmental injustice the researchers employed. The study didn’t delve into the local sources of nitrogen oxides, but exposure generally depends on how close you live to industrial sites, power plants, and heavily trafficked roads and highways. (About 5 percent of Hispanics and 5.4 percent of Asian or Pacific Islanders in the U.S. live within 150 meters of a major highway, compared with is 3.1 percent of non-Hispanic whites.)
Nitrogen oxides come from the exhaust pipes of cars, trucks and power plants and industries such as pulp mills that burn coal or natural gas. Living in places with higher levels of nitrogen oxides has been linked to increased risk of asthma, low birth-weight, and death from heart disease. Previous studies have found that concentrations tend to be higher in poorer neighborhoods. The new research is the first to map the differences in detail across the entire U.S. The study was published online in the journal PLoS One on April 15, 2014.
The map above compares exposure to nitrogen dioxide air pollution using the so-called Atkinson index of income inequality. It’s a way to measure how evenly or unevenly something is distributed across a population in relation to income. A score of zero would mean everyone is equally exposed regardless of income. Higher scores indicate worse inequality.
The map below highlights counties with the greatest inequality in exposure to nitrogen dioxide pollution by income and ethnicity. The comparison is between blacks, Hispanics and Asians earning less than $20,000 a year and whites earning more than $75,000.
The chart below shows how Portland compares with three California cities on exposure to nitrogen oxides (in parts per billion) by income and ethnicity:
Nationwide, the researchers concluded that residential exposures average about 38 percent higher for nonwhites than for whites, 10 percent higher for people below versus above the poverty line, and 8 percent higher for those with less than a high school education compared to those with a high school education or above.
These differences are far from trivial. The authors estimate that reducing nonwhites’ exposure to the average levels experienced by whites could prevent about 7,000 heart disease deaths per year. And that’s probably a lower-end estimate because it considers only one health outcome and one component of air pollution.
Possible solutions include doing more to cut motor vehicle emissions, for example, with cleaner fuels, very low emission engines, and better promotion of walking and public transportation. Some scientists think it’s time to impose much stricter standards for ambient concentrations of nitrogen oxides and other pollutants from cars and trucks.
Environmental justice advocates are calling for more vigilant city planning to prohibit new construction of apartments, schools, day care centers near highways. (A 2003 California law tried to prevent school districts from building campuses within 500 feet of a freeway, but at least one district, LA Unified, used loopholes to develop several new schools close to highways).
Injustices rooted in income inequality, and built over decades into the development patterns of cities aren’t going to be easy to reverse.
Joe Rojas-Burke blogs on science and health care for Oregon Business.
Wednesday, June 03, 2015
As part of our green workplaces story, Oregon Business checked out a community service project undertaken by Portland Youth Builders, a nonprofit alternative high school. In partnership with Whole Foods, PYB built garden boxes for a Home Forward housing site. Home Forward is a government agency that provides housing for low income residents and people with disabilities.
Tuesday, June 09, 2015
The technology at the center of Oregon’s road usage fee reform.
Thursday, May 14, 2015
BY JASON E. KAPLAN | STAFF PHOTOGRAPHER
There are more than 160 farmers markets in Oregon, contributing an estimated $50 million in sales, according to the Oregon Farmers Markets Association. We checked in on the Forest Grove market, which for several years has brought local produce and food vendors to Main Street in the center of town.
Friday, May 15, 2015
BY KIM MOORE | RESEARCH EDITOR
The Portland Bureau of Transportation is seeking input from businesses on a $5.5 million initiative to create a network of biking, transit and pedestrian trails within Portland’s central city.
Friday, May 22, 2015
BY JACOB PALMER
A Power Lunch at Oswego Grill.
Friday, May 22, 2015
BY HANNAH WALLACE
Travelers have always come to Oregon for its natural beauty. But will the increasing popularity of agritourism, European-style hiking getaways and forest resorts relax Oregon's notoriously strict land-use laws?
Friday, May 22, 2015
BY AMY MILSHTEIN
Astrid Scholz scales up sustainability.
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Tonkon Torp helps seed sustainability at Gunderson.
Oregon-based Environments helps companies create inspired workspaces. “Simply put, we help companies future-proof their workspaces,” says Chris Corrado, president. Since 1988,Environments has witnessed firsthand the changing landscape of business. Native Portlander and Environments founder Corrado says, “We help our clients navigate the complex realities of the workplace today and plan for their future in a very mindful, strategic way. We think of ourselves as their partners in the process.”
One hundred years ago, the Willamette River might easily have been mistaken for a sewer. Unchecked industrial activity and decades of pollution made it unrecognizable compared to the clean river that now flows north for 187 miles from Eugene through the center of Portland.
3 Degrees Event Celebrates 5th Year Bringing Nonprofit and Business Professionals Together to Benefit Portland.
Bend energy leader brings passion for efficiency and renewable energy to the nonprofit.
Event in Forest Grove marks recognition of Global Food Safety Initiative Certification.