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The correct location of earthquake emergency shelters and their allocation to residents can effectively reduce the number of casualties by providing safe havens and efficient evacuation routes during the chaotic period of the unfolding disaster. However, diverse and strict constraints and the discrete feasible domain of the required models make the problem of shelter location and allocation more difficult.

510 MW Zangmu hydel project became operational in October: Sushma

NEW DELHI: After a neck-and-neck race with Beijing over the past few winters, Delhi may soon find itself without a rival for the 'most-polluted-city' crown.

This study by the International Gas Union (IGU) highlights the interconnection that exists between reducing greenhouse gas emissions and reducing emissions of other air pollutants.

Beijing suffered its worst air pollution of the year on Monday, with monitoring sites throughout the city reporting extremely hazardous levels of pollutants.

NEW DELHI: As world leaders met in Paris on Monday to commit to a united fight against climate change, the capitals of India and China remained blanketed in heavy smog triggered by pollution.

Aerosol particles can directly alter the radiation balance by scattering and absorbing incident solar radiation, thus decreasing the amount of light reaching the surface and increasing the fraction of diffuse radiation—the so-called ‘aerosol direct radiative effect’. Using the Moderate Resolution Imaging Spectroradiometer aerosol products, the aerosol direct radiative effects under all-sky conditions in Beijing and Shanghai in 2007 were explored in this study.

China has recently made available hourly air pollution data from over 1500 sites, including airborne particulate matter (PM), SO2, NO2, and O3. We apply Kriging interpolation to four months of data to derive pollution maps for eastern China. Consistent with prior findings, the greatest pollution occurs in the east, but significant levels are widespread across northern and central China and are not limited to major cities or geologic basins. Sources of pollution are widespread, but are particularly intense in a northeast corridor that extends from near Shanghai to north of Beijing.

China has recently made available hourly air pollution data from over 1500 sites, including airborne particulate matter (PM), SO2, NO2, and O3. We apply Kriging interpolation to four months of data to derive pollution maps for eastern China. Consistent with prior findings, the greatest pollution occurs in the east, but significant levels are widespread across northern and central China and are not limited to major cities or geologic basins. Sources of pollution are widespread, but are particularly intense in a northeast corridor that extends from near Shanghai to north of Beijing.

Beijing was one of the 10 Chinese cities with the worst air quality in July, according to a ranking released by the ministry of environmental protection (MEP) on Monday.

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