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Air Quality

Businesses and investors pressing for green policy

Businesses and investors pressing for green policy

Corporations, insurance companies and pension funds lobby world leaders on climate change.

9 hours ago Photos

Photos

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Testing future conditions for the food chain

Testing future conditions for the food chain

Researchers are trying to mimic the growing conditions expected to arise decades in the future.

15 hours agoLoading…
Businesses and investors pressing for green policy

Businesses and investors pressing for green policy

Hundreds of corporations, insurance companies and pension funds are calling on world leaders gathering for a U.N. summit on climate change this week to attack the problem of pollution by making it more costly for everyday violators.

19 hours agoLoading…
Scientists report global rise in greenhouse gas emissions

Scientists report global rise in greenhouse gas emissions

Global emissions of greenhouse gases jumped 2.3 percent in 2013 to record levels, scientists reported Sunday, in the latest indication that the world remains far off track in its efforts to control global warming.

September 21, 2014 6:00 pmLoading…
China, US, India push world carbon emissions up

China, US, India push world carbon emissions up

WASHINGTON — Spurred chiefly by China, the United States and India, the world spewed far more carbon pollution into the air last year than ever before, scientists announced Sunday as world leaders gather to discuss how to reduce heat-trapping gases.

September 21, 2014 9:54 am Photos

Photos

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Tucson air quality at unhealthful levels due to wind

Pima County’s air quality has reached unhealthful levels, thanks to high winds and blowing dust.

May 03, 2013 1:32 pmLoading…

US tightens air-quality rule for soot emissions

WASHINGTON - In its first major regulation since the election, the Obama administration on Friday imposed a new air quality standard that reduces by 20 percent the maximum amount of soot released into the air from smokestacks, diesel trucks and other sources of pollution.

December 15, 2012 12:00 amLoading…

ADEQ head to EPA: Let state 'figure out' air quality issues

PHOENIX - The Environmental Protection Agency and Arizona have a common goal of following the Clean Air Act, but federal officials should recognize the "unique environment" here as they evaluate plans, a state official contends.

September 17, 2012 12:00 amLoading…

Ariz. proposes issuing air permit for Rosemont Mine

State regulators are taking over the Rosemont Mine air quality permit from Pima County, the Arizona Department of Environmental Quality announced today.

August 03, 2012 1:11 pmLoading…
Oracle mine may get DEQ approval

Oracle mine may get DEQ approval

The site of a proposed Oracle Ridge copper mine is on the north side of the Santa Catalina Mountains, between Mount Lemmon and the town of Oracle.

June 27, 2012 12:00 amLoading…
Oracle mine may get DEQ approval

Oracle mine may get DEQ approval

Pima County's environmental chief, who denied an air-quality permit for the Rosemont Mine last year, plans to approve one for a much smaller copper mine slated for the back side of the Catalina Mountains.

June 27, 2012 12:00 amLoading…

Air quality advisory issued for Tucson

Another air quality advisory was issued today by the Pima County Department of Environmental Quality because of the elevated levels of smoke and ground-level ozone.

June 01, 2012 5:19 pmLoading…

Air-quality hearing is May 31 for planned Marana landfill

The Pima County Department of Environmental Quality will hold a public hearing at 5:30 p.m. on Thursday, May 31, on the request for an air-quality permit for DKL Holdings Inc., Marana Regional Landfill.

May 27, 2012 12:00 amLoading…

Hearing set on air permit for Pima County landfill

Pima County Department of Environmental Quality will hold a public hearing at 5:30 p.m. on Thursday, May 31, on the request for an air-quality permit for the DKL Holdings Inc., Marana Regional Landfill.

May 26, 2012 12:03 pmLoading…

Phoenix won't face stricter ozone rules

PHOENIX - Federal authorities say Maricopa County exceeds the new federal limit on ozone pollution. However, the county is close enough to complying that it won't be required to impose stricter rules on motorists or industries.

May 02, 2012 12:00 amLoading…

County issues air quality advisory

The Pima County Department of Environmental Quality has issued an air quality advisory for particulate matter today.

March 07, 2012 11:45 amLoading…

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