Navigation Links
Study: Environmental policies matter for growing megacities
Date:4/3/2013

WEST LAFAYETTE, Ind. A new study shows clean-air regulations have dramatically reduced acid rain in the United States, Europe, Japan and South Korea over the past 30 years, but the opposite is true in fast-growing East Asian megacities, possibly due to lax antipollution rules or lack of enforcement.

The U.S. Clean Air Act began requiring regulatory controls for vehicle emissions in the 1970s, and 1990 amendments addressed issues including acid rain. Similar steps in the European Union, Japan and South Korea over the past three decades have reduced nitrate and sulfate in rain - components contributing to acid rain, said Suresh Rao, Lee A. Reith Distinguished Professor of Civil Engineering and Agronomy at Purdue University.

The effects of acid rain can propagate through aquatic ecosystems such as lakes, rivers and wetlands and terrestrial ecosystems including forests and soils, negatively impacting ecological health.

Researchers have now used publicly accessible data, collected weekly or monthly at numerous monitoring sites during the period from 1980-2010, to track "wet deposition" of nitrate and sulfate near several U.S. and East Asian cities. The pollutants, products of fossil fuel combustion, are emitted by cars, trucks and buses. Pollutants rise up into the atmosphere and accumulate until being washed down as wet deposition by rain or snow or as "dry deposition" between rain events.

Fast-growing cities in East Asia that lack regulations or enforcement show a dramatic rise in acid rain, according to the new study completed by Purdue researchers.

"Our analysis of wet deposition (acid rain) data provides compelling evidence that clean-air policies and enforcement of environmental regulations are profoundly important," Rao said.

The findings of the study are detailed in a research paper published in the journal Atmospheric Environment. The article is accessible online and will appear in the May issue. It was co-authored by ci
'/>"/>

Contact: Emil Venere
venere@purdue.edu
765-494-4709
Purdue University
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Study: Widespread test-and-treat HIV policies could increase dangerous drug resistance
2. Study: Probiotics reduce stress-induced intestinal flare-ups
3. Study: Antibiotics are unique assassins
4. International study: Excess dietary salt may drive the development of autoimmune diseases
5. Influenza study: Meet virus new enemy
6. Study: Resveratrol shows promise to protect hearing, cognition
7. Nature Methods study: Using light to control cell clustering
8. Study: Viral reactivation a likely link between stress and heart disease
9. Study: Odd biochemistry yields lethal bacterial protein
10. International study: Where theres smoke or smog, theres climate change
11. UT study: Students who are more physically fit perform better academically
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2014)... A Mayo Clinic researcher and his collaborators have developed ... enhance the process of re-engineering cells for biomedical investigation. ... biology methods to aid stem cell engineering. Details of ... described in two back-to-back papers in the journal ... range of uses for all types of cell-based investigations ...
(Date:8/28/2014)... , Aug. 28, 2014  Privacy Advocate and ... Jennifer Lynch , joins the lineup of biometric ... second annual Biometrics UnPlugged Executive Summit in ... Previously announced speakers include Steven Rahman, Director, Technology ... Public Sector at Experian. The theme of this year,s ...
(Date:8/28/2014)... the most commonly diagnosed learning disability in the ... occurs when the regions of the brain that ... use of non-invasive functional neuroimaging tools has helped ... However, most prior work has focused on only ... gap in our understanding of how multiple brain ...
Breaking Biology News(10 mins):New tool aids stem cell engineering for medical research 2Biometrics UnPlugged Welcomes the Electronic Frontier Foundation's Jennifer Lynch to the Mobility at the Crossroads of Commerce and Privacy Summit 2Dyslexic readers have disrupted network connections in the brain 2
... clams to flying creatures like hummingbirds and bats, many ... flow. When the 61st Annual Meeting of the American ... from November 23-25 at the San Antonio Convention Center, ... with applications in astronomy, engineering, alternative energy, biology, and ...
... University] Imagine yourself swimming in a pool: It,s the ... the water, that mostly dictates the speed and direction that ... Microbes, speed and direction are subjected more to the physical ... swim in water," explained Jay Tang, associate professor of physics ...
... land use patterns and increasing pressures on water ... management focuses on regulating the flow of runoff ... the hydrologic cycle disrupted by extensive pavement and ... of infiltration opportunities affects groundwater recharge and has ...
Cached Biology News:Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25 2Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25 3Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25 4Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25 5Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25 6Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25 7Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25 8How do bacteria swim? Brown physicists explain 2Urban trees enhance water infiltration 2
(Date:8/28/2014)... Willow Grove, PA (PRWEB) August 28, 2014 ... talent, and create a culture that will allow individuals ... that are becoming increasingly important for employers looking to ... life science industries are embracing this trend, as the ... the fabric of a company, which will have real ...
(Date:8/28/2014)... 2014 Sterlitech is proud to announce ... its stable of products . These additional ... and include membrane filters with surface charges. ... demand for our membrane process testing equipment, and correspondingly, ... sheet membranes,” explains Sterlitech President Mark Spatz. “The ...
(Date:8/28/2014)... Scientists, researchers, and technologists will converge ... Damage 2014 symposium. Marking its 46th year, the ... run 14-17 September. The event is sponsored by ... , The premier conference for basic and applied issues ... materials will engage researchers and engineers from numerous industries ...
(Date:8/28/2014)... MA (PRWEB) August 28, 2014 ... wholesale construction materials, selected SoundConnect to ... their cloud based audio and web conferencing platform ... to support PrimeSource’s employees’ needs. SoundConnect delivers ... , PrimeSource Building Products will be utilizing ...
Breaking Biology Technology:Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 2Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 3Sterlitech Corporation Enhances Its Selection of Flat Sheet Membrane Filters 2Laser Damage to Draw Researchers, Engineers, Scientists to 46th Annual Conference 2Laser Damage to Draw Researchers, Engineers, Scientists to 46th Annual Conference 3PrimeSource Chooses SoundConnect as Collaboration Provider 2
... Impact on Families of von ... Willebrand Disease, NEW YORK, ... most common hereditary bleeding disorder, von,Willebrand disease (VWD), most don,t even know ... Centers for Disease Control and,Prevention (CDC) it takes a woman an average ...
... DIEGO, Sept. 23 Halozyme Therapeutics,Inc. (Nasdaq: ... targeting the extracellular matrix, today,announced that Douglas B. ... Endocrinology Clinical Development., "I am thrilled to ... achievement to the Halozyme leadership team. He is ...
... 85,000 Expected to Enroll in Phase 4 Study ... Wyeth Pharmaceuticals, a,division of Wyeth (NYSE: WYE ... Pneumonia Immunization Trial in Adults a major study ... to help,prevent pneumococcal pneumonia -- the leading cause ...
Cached Biology Technology:Video: Moms Raise 'Red Flag' About the Dangers of Widely Undiagnosed Bleeding Disorder 2Video: Moms Raise 'Red Flag' About the Dangers of Widely Undiagnosed Bleeding Disorder 3Video: Moms Raise 'Red Flag' About the Dangers of Widely Undiagnosed Bleeding Disorder 4Halozyme Therapeutics Appoints Head of Endocrinology Clinical Development 2Halozyme Therapeutics Appoints Head of Endocrinology Clinical Development 3Halozyme Therapeutics Appoints Head of Endocrinology Clinical Development 4Major Adult Vaccine Clinical Trial for Pneumonia Prevention Begins 2Major Adult Vaccine Clinical Trial for Pneumonia Prevention Begins 3Major Adult Vaccine Clinical Trial for Pneumonia Prevention Begins 4Major Adult Vaccine Clinical Trial for Pneumonia Prevention Begins 5
... The BD CARV II Confocal Imager ... an easy to use and cost effective ... microscope. High speed multi-point confocal scanning, combined ... photobleaching and allows real-time imaging and recording ...
... is based on quantification of the green ... free orthophosphate. The rapid color formation from ... a spectrophotometer (600-660 nm) or on a ... have been optimized to offer superior sensitivity ...
... Chemicon Select Tissue Arrays are intended for ... tissues were fixed in neutral buffered formalin ... and diagnosis was performed by certified pathologists. ... paraffin blocks and relocated into a new ...
... The desk-top XCAT 50 X-Ray System from KUBTEC ... to provide two and three dimensional representation of ... provides volumetric reconstruction of specimen X-ray images, the ... provide high level of detail in standard 2D ...
Biology Products: