Synapse
发表于 2025-3-25 04:32:59
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大范围流行
发表于 2025-3-25 07:30:02
Location and Methods of Investigation, The total area is 13085.6 km.. It is located in the upper reaches of the Yellow River, near the border between the Tibetan Plateau, the Loess Plateau, and the Inner Mongolia Plateau (Fig. 2.1). Lanzhou is an industrial city with a developed chemical, oil, and flower industry, manufacturing of heavy
单片眼镜
发表于 2025-3-25 12:52:45
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overshadow
发表于 2025-3-25 19:36:42
,Study of Air Pollution in Lanzhou City in 2003–2012,re three pollutant indicators of monitoring data. According to the Chinese National Ambient Air Quality Standard (CNAAQS) GB3095–1996, as NAAQS GB3095–2012 was adopted in 2012, the study of the period 2003–2012 was using NAAQS GB3095–1996. The daily average concentration of major air pollutants of S
Physiatrist
发表于 2025-3-26 00:00:06
Level of Pollutants Concentration in the Atmosphere of Lanzhou,es. A lot of low and irregular sources (transportation, boiler, heating, etc.) weren’t taken into account. However, in our opinion, the most objective and precise criterion for the air pollution was a concentration of impurities or the mass of the pollutants in the unit volume of air (mg/m. or μg/m.
没有贫穷
发表于 2025-3-26 00:38:17
Analysis of the Causes of Influencing Factors of Air Pollution in Lanzhou,ific weather system under specific geographical environment and underlying surface conditions, mainly in arid areas, in semi-arid areas, in desertified areas, and in farming-pastoral ecotone. Dust weather has a great destructive power, and the economic losses caused to the country and people by sand
MAPLE
发表于 2025-3-26 04:35:13
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macrophage
发表于 2025-3-26 12:22:58
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苦笑
发表于 2025-3-26 15:37:05
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Parameter
发表于 2025-3-26 20:02:52
Book 2019teorological parameters on pollution levels, and trajectories of polluted air masses. For example, the book shows that particulate matter from local sources is transported from deserts to create air quality challenges. It also analyzes the effects of desert and semi-desert landscapes on high concentrations of pollutants..