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Updated: Feb 25, 2026

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions
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Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions

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在线观测一年PM2.5组成在 jiaxing市:时间演变,来源分配,和不同污染过程的特征

Fangwei Zuo1, Xiaopei Xu2, Feifei Yu2

  • 1Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), China Meteorological Administration Aerosol-Cloud and Precipitation Key Laboratory, Nanjing University of Information Science and Technology, Nanjing, 210044, China.

Environmental pollution (Barking, Essex : 1987)
|February 23, 2026
PubMed
概括

这项研究表明,亚酸盐,酸盐和硫酸盐主导了嘉兴的PM2.5污染,光化学活动是主要来源. 控制NOx和VOC对于沿海工业城市至关重要.

关键词:
化学元件 化学元件 化学元件沿海工业城市 沿海工业城市这里是 HYSPLIT.在PMF中,PMF是指PMF.来源分配的分配方式

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Precipitation Processes01:12

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The experimental conditions in a gravimetric analysis should be optimized to maximize the particle size and purity of the obtained precipitate. Ideally, the concentration of the precipitating reagent should be low with effective stirring to maintain low relative supersaturation for the growth of large crystals. In homogeneous precipitation, the precipitant is slowly generated by a chemical reaction in the solution to avoid local reagent excesses. For example, urea decomposes gradually to...
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In precipitation gravimetry, the precipitating agent should react specifically or selectively with the analyte. While a specific reagent reacts with the analyte alone, a selective reagent can react with a limited number of chemical species.
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...
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After filtration, the precipitate is washed to remove coprecipitated impurities and any remaining mother liquor. Colloidal precipitates, such as silver chloride, are washed with an electrolyte (such as dilute nitric acid) to prevent the peptization of the precipitate. In the case of slightly soluble precipitates, the wash solution contains a common ion to reduce solubility. Lead sulfate, which is slightly soluble in water, is washed with dilute sulfuric acid. Similarly, wash solutions may be...
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