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71.
Junling Li Hong Li Xuezhong Wang Weigang Wang Maofa Ge Hao Zhang Xin Zhang Kun Li Yan Chen Zhenhai Wu Fahe Chai Fan Meng Yujing Mu Abdelwahid Mellouki Fang Bi Yujie Zhang Lingyan Wu Yongchun Liu 《环境科学学报(英文版)》2021,33(4):185-197
Understanding the formation mechanisms of secondary air pollution is very important for the formulation of air pollution control countermeasures in China. Thus, a large-scale outdoor atmospheric simulation smog chamber was constructed at Chinese Research Academy of Environmental Sciences (the CRAES Chamber), which was designed for simulating the atmospheric photochemical processes under the conditions close to the real atmospheric environment. The chamber consisted of a 56-m3 fluorinated ethylene propylene (FEP) Teflon film reactor, an electrically-driven stainless steel alloy shield, an auxiliary system, and multiple detection instrumentations. By performing a series of characterization experiments, we obtained basic parameters of the CRAES chamber, such as the mixing ability, the background reactivity, and the wall loss rates of gaseous compounds (propene, NO, NO2, ozone) and aerosols (ammonium sulfate). Oxidation experiments were also performed to study the formation of ozone and secondary organic aerosol (SOA), including α-pinene ozonolysis, propene and 1,3,5-trimethylbenzene photooxidation. Temperature and seed effects on the vapor wall loss and SOA yields were obtained in this work: higher temperature and the presence of seed could reduce the vapor wall loss; SOA yield was found to depend inversely on temperature, and the presence of seed could increase SOA yield. The seed was suggested to be used in the chamber to reduce the interaction between the gas phase and chamber walls. The results above showed that the CRAES chamber was reliable and could meet the demands for investigating tropospheric chemistry. 相似文献
72.
Jingyang Luo Shiyu Fang Wenxuan Huang Feng Wang Le Zhang Fang Fang Jiashun Cao Yang Wu Dongbo Wang 《Frontiers of Environmental Science & Engineering》2022,16(8):106
73.
Zhao Dianjia Ye Wenkang Cui Wenxuan 《Environmental science and pollution research international》2022,29(20):29613-29623
Environmental Science and Pollution Research - As eco-friendly adsorption material, hydroxyapatite (Ca5(PO4)3OH, HA) has been extensively applied to the removal of heavy metal ions. However,... 相似文献
74.
为保证环保工作的有效性,推动环保工作不断向好发展,分析了环境监测及其分类,指出环境监测对环保工作的影响.其可为环境评价的不断完善提供数据依据,降低环境治理成本,推动环保工作高效顺利开展.提出了进一步发挥环境监测对环保工作积极影响的措施:加大资金投入力度,加强环境监测专业队伍建设力度,确保环保工作高质量高效率开展,为人们... 相似文献
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Chai Liwei Huang Muke Cao Xiaofeng Liu Mengjiao Huang Yi 《Environmental science and pollution research international》2019,26(20):20418-20427
Environmental Science and Pollution Research - Ectomycorrhizal fungi can enhance the tolerance of plants to heavy metal stress by reducing the accumulation of heavy metals in the aerial parts of... 相似文献
78.
Xin Yan Wang Dongchuan Zhang Lihui Ma Yingyi Chen Xing Wang Haiqing Wang Hongyi Wang Kangjian Long Hui Chai Hua Gao Jianshe 《Environment, Development and Sustainability》2022,24(3):3687-3703
Environment, Development and Sustainability - The western region of China has always been the main battlefield for poverty alleviation. It is essential to explore the interaction mechanism between... 相似文献
79.
MonitoringofPotentialcarcinogenicpolycyclicaromaticcompoundsintheemissionfromcoalcombustionCuiWenxuan,YaoWeixi,XuXiaobai(Rese... 相似文献
80.