Results: The results indicate that the population in Lanzhou urban areas is distributed in a narrow and long belt,
and there are relatively large population spatial gradients in the XiGu, ChengGuan and QiLiHe districts. We select
threshold concentration C0 at: 0 μg m-3 (no harmful health effects), 20 μg m-3 (recommended by the World Health
Organization), and 50 μg m-3 (national first class standard in China) to calculate excess morbidity cases. For these
three scenarios, proportions of the economic cost of PM10 pollution-related adverse health effects relative to GDP
are 0.206%, 0.194% and 0.175%, respectively. The impact of meteorological factors on PM10 concentrations in 2000
is also analyzed. Sandstorm weather in spring, inversion layers in winter, and precipitation in summer are important
factors associated with change in PM10 concentration.
Results: The results indicate that the population in Lanzhou urban areas is distributed in a narrow and long belt,
and there are relatively large population spatial gradients in the XiGu, ChengGuan and QiLiHe districts. We select
threshold concentration C0 at: 0 μg m-3 (no harmful health effects), 20 μg m-3 (recommended by the World Health
Organization), and 50 μg m-3 (national first class standard in China) to calculate excess morbidity cases. For these
three scenarios, proportions of the economic cost of PM10 pollution-related adverse health effects relative to GDP
are 0.206%, 0.194% and 0.175%, respectively. The impact of meteorological factors on PM10 concentrations in 2000
is also analyzed. Sandstorm weather in spring, inversion layers in winter, and precipitation in summer are important
factors associated with change in PM10 concentration.
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