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

solutions to control emissions."

However, the same homogeneity is not seen in several large fast-growing cities in East Asia, where high wet deposition rates match high, unregulated emissions.

"This is the same thing that transpired in the United States in the period leading up to the 1970s," Rao said. "We had rapid urban growth, rising emissions and rising wet deposition, which is analogous to what's happening now in places like Beijing and New Delhi."

For example, the concentration of nitrate and sulfate in rainwater in the Chinese city of Xi'an is 10 times greater than in New York City.

The reduction in wet deposition in U.S. cities is especially significant considering that the time period also was marked by dramatic growth in gross domestic product, urban population and the number of vehicles.

"This is encouraging," Gall said. "When mitigation strategies are widely adapted, it is possible for cost-effective engineering solutions to protect the environment while simultaneously allowing people to maintain the same quality of life."

The researchers have developed a model that can be used to simulate and predict how wet deposition rates vary across megacities located in diverse climatic regions, such as arid or humid.

"Given certain emissions and rainfall patterns, we can now project how wet deposition rates would increase initially and then decrease when and if regulations are in place," Rao said. "Additionally, the model can be used to examine wet deposition rates under climate-change scenarios."

The study findings also have implications for variations in wet deposition rates under shifting weather resulting from climate-change scenarios, as well as rapid urbanization in emerging economies.

Although annual wet deposition patterns are influenced by variability in rainfall amounts both within a year and from year to year, the effects are much greater when pollutant-emission regulation is weak. For example, even though Xi'an, Ch
'/>"/>

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:10/16/2014)... (October 16, 2014) – Post-menopausal women experienced improvements ... hormone levels or genital bleeding, after 12 weeks ... investigational fermented soy germ-based nutritional supplement previously shown ... a new peer-reviewed pilot study reported in a ... annual scientific meeting. , "These data documented ...
(Date:10/15/2014)... German Gauß-Allianz has admitted Johannes Gutenberg University Mainz ... Rhineland-Palatinate science hub continues to maintain a significant ... , "The acceptance of Johannes Gutenberg University ... is a milestone in the national and international ... The state of Rhineland-Palatinate can be proud that ...
(Date:10/15/2014)... VILNIUS, Lithuania , Oct. 15, 2014 /PRNewswire/ ... identification technologies, today announced the availability of the ... . VeriLook Surveillance 3.0 provides real-time biometric face ... multiple high-resolution digital surveillance cameras. The new version ... detects and differentiates people from objects while they ...
Breaking Biology News(10 mins):S-equol supplements associated with improved measures of reproductive health in postmenopausal women 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 3VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 2VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 3
... HILO, HawaiiIn collaboration with Stanford University and ... Service Pacific Southwest Research Station,s Institute of Pacific ... developing "hybrid ecosystems"a mix of native and non-native ... in tropical forests. The research team, comprised ...
... parrots and iguanas may seem inoffensive at first glance when ... escape and become invasive species. This has been confirmed by ... 63 Spanish zoos. Birds are the animals most likely to ... (non-indigenous) species, they could become an entry channel for these ...
... -- Specialized white blood cells called T cells and ... and eliminate "non-self" substances such as viruses and bacteria. ... immunoreceptors on the cell surface bind to specific regions on, ... pathways inside the T cells and B cells that control ...
Cached Biology News:US Forest Service and 2 universities team up to develop new ecosystems for Hawaiian forests 275 percent of Spanish zoos at risk of exotic animals escaping 275 percent of Spanish zoos at risk of exotic animals escaping 3
(Date:10/19/2014)... 19, 2014 The Asian Orthopedic braces and ... Asia with analysis and forecast of revenue. The Orthopedic braces ... to around $416.5 million by 2018, at a developing CAGR ... TOC of the Asian Orthopedic braces and support systems market, ... also provides a glimpse of the segmentation of orthopedic braces ...
(Date:10/18/2014)... (PRWEB) October 18, 2014 The ... - Trends and Forecasts to 2019", analyzes the ... in order to understand the industry details such ... opportunities across various geographic regions. , Browse 81 ... 202 Slides and in-depth TOC on “1,6-Hexanediol Market ...
(Date:10/18/2014)... (PRWEB) October 18, 2014 The ... rate in the five years to 2014. The industry's ... renewable energy tax credits that encouraged the use of ... renewable portfolio standards (RPSs), which require local utilities to ... their total energy portfolio. Increased campaigning for green technology ...
(Date:10/17/2014)... Alice,s journey through the looking-glass to Wonderland, mirrors in ... unexpected ways, including a new class of mirror that ... in The Optical Society,s (OSA) new high-impact journal ... first time, a new type of mirror that forgoes ... light by using an unusual magnetic property of a ...
Breaking Biology Technology:The Asian Orthopedic braces and support systems market is estimated to grow to around $416.5 million by 2018 - New Report by MicroMarket Monitor 2The Asian Orthopedic braces and support systems market is estimated to grow to around $416.5 million by 2018 - New Report by MicroMarket Monitor 3The Asian Orthopedic braces and support systems market is estimated to grow to around $416.5 million by 2018 - New Report by MicroMarket Monitor 41,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 21,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 31,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 41,6-Hexanediol Market Projected to Reach $916.1 Million at a CAGR of 8.3% by 2019 – Report by MarketsandMarkets 5Biomass Power in the US Industry Market Research Report from IBISWorld Has Been Updated 2Biomass Power in the US Industry Market Research Report from IBISWorld Has Been Updated 3Magnetic mirrors enable new technologies by reflecting light in uncanny ways 2Magnetic mirrors enable new technologies by reflecting light in uncanny ways 3Magnetic mirrors enable new technologies by reflecting light in uncanny ways 4
... 21, 2010 Novogen Limited and Marshall Edwards, Inc. ... on the clinical development of novel therapeutics targeting cancer ... definitive asset purchase agreement pursuant to which Marshall Edwards ... for $4 million of convertible preferred stock. ...
... (as well as many members of the public), new ... Scientists from Harvard Medical School, the University of Illinois, ... used genetic analysis to prove that the African savanna ... largely separated for several million years. The researchers, ...
... Dec. 21 2010 El Camino Hospital today announced ... Clinical Trial. El Camino Hospital is one of the ... in the trial, which is evaluating a revolutionary non-surgical, ... for patients with severe aortic stenosis. "The ...
Cached Biology Technology:Novogen and Marshall Edwards Sign Asset Purchase Agreement 2Novogen and Marshall Edwards Sign Asset Purchase Agreement 3Novogen and Marshall Edwards Sign Asset Purchase Agreement 4Novogen and Marshall Edwards Sign Asset Purchase Agreement 5Seeing double: Africa's 2 elephant species 2El Camino Hospital Announces First Implant in Clinical Trial to Evaluate Revolutionary Heart Valve Procedure 2El Camino Hospital Announces First Implant in Clinical Trial to Evaluate Revolutionary Heart Valve Procedure 3
... includes 7 lanes of ... Alzheimer's-diseased brain tissue including: ... frontal lobe, temporal lobe, ... and cerebellum. Patent/trademark/license (electronic): ...
... spatulas have been designed to save time ... those interested in eliminating the recycling and ... is individually packaged, RNase/DNase free, non-pyrogenic and ... new product number, created to easily match ...
... the mechanical harvesting of cells • Blade ... contact with the growth surface • Designed ... • Individually wrapped • Sterilized by gamma ... number is a new product number, created ...
... single use spatulas have been designed to ... are for those interested in eliminating the ... Each spatula is individually packaged, RNase/DNase free, ... is a new product number, created to ...
Biology Products: