Africa is urbanizing at a very high pace, and both large and intermediate African cities are experiencing rapid and often unplanned growth. As a result, policy- and decision-makers face numerous challenges regarding planning, development and management of their cities.

Ambient coarse, fine, and ultrafine particles have been associated with mortality and morbidity. Few studies have compared how various particle size fractions affect systemic biomarkers. The researchers examined changes of blood and urinary biomarkers following exposures to three particle sizes.

The purpose of this study is to characterize heavy metals in ambient PM10 (particles with aerodynamic diameter below 10 µm) and PM2.5 (particles with aerodynamic diameter below 2.5 µm) particles in a typical integrated iron and steel industry zone (HG) and a background site (ZWY) during February 2011 to January 2012 in the Yangtze River Delta (YRD) region, China. Twelve elements were measured to study their levels, size distribution and sources. At the two sampling sites, Fe was found as the dominated metal in the total detected metals in both particle sizes, followed by Zn and Pb.

The sudden boom in diesel cars and trucks in Delhi and the National Capital Region (NCR) has escalated the level of ozone gas in the air.

Tianjin Municipality in north China increased the pollution fee imposed for smoke and dust discharged by industrial enterprises by nine times on May 1, in a push to reduce emissions.

Cities surrounding Beijing reported fewer polluted days last month, but average air quality still lagged behind other regions, the Ministry of Environmental Protection said yesterday.

Beijing will ban new coal-fired thermal power plants after the four existing ones are expected to be replaced by gas-fired plants by 2017, according to the municipal economic planner.

KARACHI: The Sindh Environmental Protection Agency’s (Sepa) recent approval of two separate Environment Impact Assessment (EIA) reports on the coal terminal being operated by the Karachi Port Trust

A day after being criticised by the National Green Tribunal (NGT) for preparing a report that "lacked data and analysis", IIT-Delhi scientists who authored the study came out in support of it.

A day after being criticised by the National Green Tribunal (NGT) for preparing a report that “lacked data and analysis”, IIT-Delhi scientists who authored the study came out in support of it.

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