Thursday, August 14, 2008
Chinese Air Pollution: Deadliest in World
China,the world's fastest growing economy, has earned another startling superlative: the highest annual incidence of premature deaths triggered by air pollution in the world, according to a new study.
A World Health Organization (WHO) report estimates that diseases triggered by indoor and outdoor air pollution kill 656,000 Chinese citizens each year, and polluted drinking water kills another 95,600.
"Air pollution is estimated to cause approximately two million premature deaths worldwide per year," said Michal Krzyzanowski, an air quality adviser at the WHO Regional Office for Europe.
Damaging air pollutants include sulfur dioxide, particulate matter—a mixture of extremely small particles and water droplets—ozone, and nitrogen dioxide. China accounts for roughly one-third of the global total for these pollutants.
The combustion of fossil fuels—whether to power China's many automobiles, its burgeoning factories, or its expanding megacities—is a primary source of outdoor air pollutants.
The burning of coal or charcoal to heat homes, common throughout China, also produces a range of indoor air pollutants.
Eek!
Numbers of the black-and-white ruffed lemur (Varecia variegata)—which, like all lemur species, is found only on the African island of Madagascar—have dwindled as a result of predation and habitat loss.
Last week the International Union for Conservation of Nature (IUCN) added several species and subspecies of primates, including the ruffed lemur, to the "critically endangered" category in its Red List of Threatened Species.