Tag: air pollution

EPA takes Chrysler to court for cheating emissions tests

The EPA says Fiat Chrysler tried to cheat the EPA emissions standards with software tricks and defeat devices, just like VW.  @bberwyn photo.

EcoDiesel engines on Ram trucks and Jeep Cherokees at issue in civil suit

Staff Report

The EPA may not be beating the climate change drum any more, but it apparently still wants to hold automakers accountable for emissions scams. This week, the agency announced it’s filing a civil complaint against Fiat Chrysler Automobiles, alleging that the company installed cheat software on almost 104,000 light duty diesel vehicles.

According to the EPA, the 3.0 liter EcoDiesel engines are equipped with software functions that were not disclosed to regulators during the certification application process, and that the vehicles contain defeat devices. The complaint alleges that the undisclosed software functions cause the vehicles’ emission control systems to perform less effectively during highway driving than on federal emission tests, resulting in increased emissions of harmful air pollutants.  Continue reading “EPA takes Chrysler to court for cheating emissions tests”

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West Coast states, cities, challenge Trump on climate policies

Leaders vow to fight effort to roll back Clean Power Plan

Mercury, heat-trapping greenhouse gases and other pollutants from the Craig Station power plant in northwest Colorado have global impacts. @bberwyn photo.

Staff Report

The Trump administration will reportedly soon unveil an executive order to try and undo climate policies developed under Obama, but West Coast states say they have intention of going along with that half-baked proposal. Continue reading “West Coast states, cities, challenge Trump on climate policies”

EU warns of persistent air quality violations

5 countries now on notice face potential legal action

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Clouds and haze over Vienna, Austria, where particulate air pollution often exceeds standards set to protect human health. @bberwyn photo.

By Bob Berwyn

Five large EU countries are on warning after repeatedly failing to meet air pollution  standards for nitrogen oxide, a precursor to smog and a serious health risk in and of itself. If Member States fail to act within two months, the Commission may decide to take the matter to the Court of Justice of the EU.

Studies have shown that more than 400,000 people die prematurely each year due to poor air quality, while millions more suffer from respiratory and cardiovascular diseases. Persistently high levels of nitrogen dioxide (NO2) caused almost 70 000 premature deaths in Europe in 2013, which was almost three times the number of deaths by road traffic accidents in the same year.

Because of the persistent breaches, the European Commission this week sent final warning to  Germany, France, Spain, Italy and the United Kingdom, urging those countries to improve air quality and safeguard public health.

Continue reading “EU warns of persistent air quality violations”

Droughts and fires affecting Western U.S. air quality

New study tracks increase in summertime haze in Colorado wilderness

Summit County firefighters extinguish a small wildfire between Keystone and Montezuma late March, 2012.
Summit County, Colorado, firefighters extinguish a small wildfire between Keystone and Montezuma late March, 2012. A new University of Utah study suggests that more drought and wildfires will worsen air pollution in the high country of the West, even spreading to pristine wilderness areas. @bberwyn photo.

Staff Report

Longer and hotter droughts and wildfires are polluting the once clear blue skies of the high country in the West, according to new research from the University of Utah.

The study, published this week in the journal Environmental Research Letters, found a link between the severity of drought in the Intermountain West and summertime air quality. Climate projections suggest that drought and wildfire risk will continue to increase in coming decades.

“If you take that into the future, we’re going to see significant hazing of the West,” said University of Utah atmospheric scientist Gannet Hallar. Continue reading “Droughts and fires affecting Western U.S. air quality”

Harley-Davidson to pay $15 million for cheating on clean air rules

Et tu, Harley-Davidson?

Court settlement includes mitigation and buy-back program

Staff Report

Volkswagen isn’t the only company to try and circumvent clean air rules. This week, Harley-Davidson agreed to pay a $12 million civil penalty for installing illegal devices that increase air pollution from their motorcycles.

Under the court-approved settlement, the company also agreed to spend $3 million to mitigate air pollution by replacing older wood stoves with cleaner heating units, and to  stop selling and to buy back and destroy the so-called super-tuners.

According to court documents, Harley-Davidson manufactured and sold about 340,000 of the devices, that, once installed, caused motorcycles to emit higher amounts of certain air pollutants than what the company certified to EPA. Aftermarket defeat devices like these super tuners alter a motor vehicle’s emissions controls and are prohibited under the Clean Air Act for use on vehicles that have been certified to meet EPA emissions standards. Continue reading “Harley-Davidson to pay $15 million for cheating on clean air rules”

Air pollution seen as another factor in honeybee decline

Ozone degrades scent molecules

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Air pollution makes it harder for bees and other insects to find flowers. @bberwyn photo.

Staff Report

Air pollution is changing plant odors, which confuses bees and makes them less efficient at foraging and pollinating plants, Penn State researchers said in a new study that shows how ozone breaks down plant-emitted scent molecules.

The chemical interactions decrease both the scent molecules’ life spans and the distances they travel, the scientists reported in the new study. They found that plant-emitted hydrocarbons break down through chemical interactions with certain air pollutants such as ozone. This breakdown process results in the creation of more air pollutants, including hydroxyl and nitrate radicals, which further increase the breakdown rate of plant odors. Continue reading “Air pollution seen as another factor in honeybee decline”

Does industrial pollution from Asia cause oxygen-starved dead zones in the Pacific Ocean?

New research offers clues on global pollution pathways

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A new study shows  industrial pollution from Asia affects the health of tropical oceans. @bberwyn photo.

Staff Report

Polluted dust from Asia is cutting oxygen levels in the tropical Pacific Ocean, researchers said this week, releasing a new study that traces a chain reaction that starts with land-based industrial pollution in China and other Asian countries.

“There’s a growing awareness that oxygen levels in the ocean may be changing over time,” said Taka Ito, an associate professor at Georgia Tech’s School of Earth and Atmospheric Sciences. “One reason for that is the warming environment – warm water holds less gas. But in the tropical Pacific, the oxygen level has been falling at a much faster rate than the temperature change can explain,” Ito said.

The study found that the pollution raises levels of iron and nitrogen  in the ocean off the coast of East Asia. Ocean currents then carried the nutrients to tropical regions, where it feeds photosynthesizing phytoplankton. As those organisms feed on the nutrients, it has a negative effect on the dissolved oxygen levels deeper in the ocean. Continue reading “Does industrial pollution from Asia cause oxygen-starved dead zones in the Pacific Ocean?”