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2011-01-11 14:43:00

HARRISBURG, Pa., Jan. 11, 2011 /PRNewswire-USNewswire/ -- Years of steady progress toward cleaner air have paid off for Pennsylvania, Department of Environmental Protection Secretary John Hanger said today. Philadelphia and surrounding counties have reached air quality levels for the 8-hour health-based ozone standard established by the U.S. Environmental Protection Agency in 1997. Today, every area in the state has achieved air quality attainment of the 1997 standard, compared to the 37...

2011-01-09 00:44:00

The sources of chemical hazards may surprise you. Greensboro, NC (PRWEB) January 7, 2011 This is the time of year many Americans make a resolution to live healthier. One way we can have a healthier home is to reduce the number of chemicals in the products we use every day. A recent study at the University of Washington in Seattle found that popular consumer goods emit volatile organic compounds (VOCs), including several chemicals that are known to be toxic to humans. The surprising...

2011-01-04 14:16:00

A special edition of the American Chemical Society journal, Environmental Science & Technology (ES&T), one of the world's premier environmental journals, is available now for a limited time online without charge. The special edition will be accessible free during 2011, when the world celebrates the International Year of Chemistry. Entitled "Environmental Policy: Past, Present, and Future," the special issue of ES&T recognizes closure of a "green" decade in which people became more...

2010-12-30 11:06:00

#11 celebrates over 160,000 lives saved in 2010, thanks to the Clean Air Act 2010 marks 40th Anniversary of this landmark legislation WASHINGTON , Dec. 30, 2010 /PRNewswire-USNewswire/ -- The American Lung Association has released its list of eleven biggest 'clean air' events of 2010. Eight events marked milestones that provide greater protection from dangerous air pollutants, while three represented delays that have life-threatening consequences. The Lung Association issued the list...

2010-12-21 12:56:00

SAN DIEGO, Dec. 21, 2010 /PRNewswire/ -- A San Diego Maritime Lawyer from The Turley Law Firm, APLC, has filed a Jones Act lawsuit in San Diego Superior Court against Hornblower, Inc., and Hornblower Yachts, Inc., LLC. Hornblower owns a fleet of vessels operated in San Diego harbor and the Pacific Ocean. The vessels are used for San Diego harbor tours, whale watching tours, charter luxury yachts and dinner cruises. Plaintiff was a maintenance engineer who worked aboard the San Diego...

2010-12-07 10:41:00

Berks County Firm Receives $235,000 Clean Diesel Grant to Replace Four Coaches KUTZTOWN, Pa., Dec. 7, 2010 /PRNewswire-USNewswire/ -- Environmental Protection Secretary John Hanger and Steven G. Haddad, president of Carl R. Bieber, Inc., of Kutztown, announced today that a $235,000 state grant will help the commercial bus line operator replace four old, inefficient motor coaches with newer models that can run on homegrown fuels and will emit less pollution. Hanger said the company's...

2010-12-06 13:13:00

Letter Sent to All Hill Offices; Advertisement to Appear in The Hill, National Journal Daily and CQ Today WASHINGTON, Dec. 6, 2010 /PRNewswire-USNewswire/ -- A total of 284 national and state medical society and public health groups and other clean air advocates are calling on Congress to defend the Clean Air Act and to reject any measure that would block or delay the U.S. Environmental Protection Agency (EPA) from doing its job to protect all Americans from life-threatening air pollution....

2010-11-17 10:00:00

210 Regional, State and Local Groups Sign on; American Lung Association, American Public Health Association, and American Academy of Pediatrics Among Signers of New National Ad. WASHINGTON, Nov. 17, 2010 /PRNewswire-USNewswire/ -- A national coalition of 210 public health, advocacy and faith-based groups is endorsing pending EPA pollution limits that would save 12,000 lives and prevent tens of thousands of asthma attacks and heart attacks each year. The groups announced their support...

2010-11-01 15:20:00

Agency Continues to Monitor Air Quality in Other PA Regions HARRISBURG, Pa., Nov. 1, 2010 /PRNewswire-USNewswire/ -- Department of Environmental Protection today released a report on a five-week air quality study conducted near Marcellus Shale natural gas operations in southwestern Pennsylvania's Greene and Washington counties. "This short-term study only provides a snapshot of the air contaminants we found at surveyed sites, but the data shows no emission levels that would constitute a...

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2010-11-01 13:41:27

Current computer models may underestimate levels of ground-level ozone A team of scientists has, for the first time, completely characterized an important chemical reaction that is critical to the formation of ground-level ozone in urban areas. The team's results indicate that computer models may be underestimating ozone levels in urban areas during episodes of poor air quality (smoggy days) by as much as five to 10 percent. Ground level ozone poses significant health hazards to people,...


Latest Smog Reference Libraries

Acid Rain
2013-04-01 10:21:17

Acid rain is any form of precipitation that is unusually acidic, meaning that is possesses high levels of hydrogen ions. It can have harmful effects on aquatic animals, plants, and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules within the atmosphere to produce acids. Nitrogen oxides can be produced naturally by lightening strikes. Sulfur dioxide can be produced naturally by volcanic eruptions. The chemicals that are...

22_1663f68fda000d8f11d5a4317e325607
2009-07-06 17:01:44

Arctic haze is a phenomenon that occurs in the atmosphere at high latitudes in the Arctic due to air pollution. What distinguishes Arctic haze from haze found elsewhere, is the ability of its chemical ingredients to endure in the atmosphere for a longer period of time compared to other pollutants. Due to limited snowfall, rain, or turbulent air to displace pollutants from the polar air in the spring, Arctic haze can continue for more than a month in the northern atmosphere. Arctic haze was...

22_c8da84dbe2308dcca223c7190a69a675
2009-07-06 16:44:13

Haze is a type of atmospheric phenomenon where dust, smoke and dry particles in the air obscure the sky's clarity. Haze is created through various activities including farming, traffic pollution,and even wildfires. The World Meteorological Organization (WMO) categorizes the obscuration of the Earth's atmosphere by a list of different types of atmospheric phenomena. One of these is haze. The other classifications are: fog, ice fog, steam fog, mist, smoke, volcanic ash, dust, sand, and snow....

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Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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