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东山湾表层沉积物Cd,Pb,Cu含量的分布 被引量:6
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作者 廖文卓 庄国顺 陈松 《台湾海峡》 CAS 1987年第1期20-26,共7页
据1984年福建海岸带调查资料,报道了东山湾表层沉积物及其稀酸可溶部分和间隙水中Cd,Pb,Cu含量的分布特征,井探讨了这三个要素含量与沉积物中水合氧化铁和有机质含量的关系。
关键词 间隙水 底质水 九龙江口 东山湾 东山内澳 PB 有机质含量 重金属含量 Cu
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长江口底质腐殖酸铜铅络合物的表观稳定常数 被引量:1
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作者 庄国顺 廖文卓 +1 位作者 潘皆再 陈松 《台湾海峡》 CAS 1988年第4期51-55,共5页
采用差示脉冲阳极溶出极谱法测定了长江口底质腐殖酸每个分子中可键合金属位置的平均数,计算其平均分子量约为800,并估算出长江口底质腐殖酸-铜、铅络合物的表现稳定常数高达10^(11)-10^(12)数量级。
关键词 腐殖酸 铅络合物 铅化合物 表观稳定常数 扬子江口 长江口 底质 峰电流值
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厦门港湾表层沉积物中腐殖酸铜铅络合物的表观稳定常数 被引量:1
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作者 庄国顺 廖文卓 陈松 《台湾海峡》 CAS 1988年第3期3-9,共7页
从现场采集的厦门港湾表层沉积物中提取了腐殖酸,在近于该港湾表层沉积物腐殖酸含量、pH、痕量金属离子浓度和盐度等现场条件下,采用差示脉冲阳极溶出伏安法,测定了所提取的腐殖酸每个分子中可键合金属位置的平均数,并根据所测定的总酸... 从现场采集的厦门港湾表层沉积物中提取了腐殖酸,在近于该港湾表层沉积物腐殖酸含量、pH、痕量金属离子浓度和盐度等现场条件下,采用差示脉冲阳极溶出伏安法,测定了所提取的腐殖酸每个分子中可键合金属位置的平均数,并根据所测定的总酸性基当量浓度估算其平均分子量(约为850)。根据实验获得的平均意义上的化学计量式,估算出厦门港湾表层沉积物中腐殖酸的铜、铅络合物的表观稳定常数分别为2.0×10^(10)和4.5×10^(10)。 展开更多
关键词 腐殖酸 金属 铅络合物 金属材料 铅化合物 表层沉积物 表观稳定常数 港湾 厦门 福建
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Long-term monitoring and source apportionment of PM_(2.5)/PM_(10) in Beijing,China 被引量:65
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作者 WANG Hailin zhuang Yahui +4 位作者 WANG Ying SUN Yele YUAN Hui zhuang guoshun HAO Zhengping 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2008年第11期1323-1327,共5页
During 2001-2006,PM2.5 (particle matter with aerodynamic diameter less than 2.5 microns) and PM10 (particle matter with aerodynamic diameter less than 10 microns) were collected at the Beijng Normal University (BNU) s... During 2001-2006,PM2.5 (particle matter with aerodynamic diameter less than 2.5 microns) and PM10 (particle matter with aerodynamic diameter less than 10 microns) were collected at the Beijng Normal University (BNU) site,China,and in 2006,at a background site in Duolun (DL).The long-term monitoring data of elements,ions,and black carbon showed that the major constituents of PM2.5 were black carbon (BC) crustal elements,nitrates,ammonium salts,and sulfates.These five major components accounted for 20%-80% of... 展开更多
关键词 PM2.5 PM10 MONITORING source apportionment
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Source apportionment for urban PM_(10) and PM_(2.5) in the Beijing area 被引量:22
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作者 ZHANG Wei GUO JingHua +4 位作者 SUN YeLe YUAN Hui zhuang guoshun zhuang YaHui HAO ZhengPing 《Chinese Science Bulletin》 SCIE EI CAS 2007年第5期608-615,共8页
Airborne particulate matter (PM2.5 and PM10) samples were collected at the Beijing Normal University sampling site in the urban area of Beijing, China in dry and wet seasons during 2001―2004. Concen-trations of 23 el... Airborne particulate matter (PM2.5 and PM10) samples were collected at the Beijing Normal University sampling site in the urban area of Beijing, China in dry and wet seasons during 2001―2004. Concen-trations of 23 elements and 14 ions in particulate samples were determined by ICP-AES and IC, re-spectively. Source apportionment results derived from both Positive Matrix Factorization (PMF) and Chemical Mass Balance (CMB) models indicate that the major contributors of PM2.5 and PM10 in Beijing are: soil dust, fossil fuel combustion, vehicle exhausts, secondary particulate, biomass burning and some industrial sources. We have identified both regional common sources, such as vehicular emis-sions, particulate of secondary origin and biomass burning, as well as country-specific problems, such as sand storms and soil dust that should be addressed for effective air quality control. 展开更多
关键词 北京地区 城区 空气颗粒物 PM10 PM2.5 污染源
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Coupling and feedback between iron and sulphur in air-sea exchange 被引量:11
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作者 zhuang guoshun GUO Jinghua +1 位作者 YUAN Hui ZHANG Xingying 《Chinese Science Bulletin》 SCIE EI CAS 2003年第11期1080-1086,共7页
关键词 铁元素 海空交换 沙尘暴 硫元素 氧化硫 气溶胶 海洋天气
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Smog chamber studies of ozone formation potentials for isopentane 被引量:8
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作者 JIA Long XU YongFu +2 位作者 GE MaoFa DU Lin zhuang guoshun 《Chinese Science Bulletin》 SCIE EI CAS 2009年第24期4624-4632,共9页
The incremental reactivity and ozone formation potential of isopentane have been studied with chamber experiments and computer simulations. The chemical mechanism used in the computer simulations is an isopentane sub-... The incremental reactivity and ozone formation potential of isopentane have been studied with chamber experiments and computer simulations. The chemical mechanism used in the computer simulations is an isopentane sub-mechanism from the Master Chemical Mechanism (MCM). The results from the chamber experiments suggest that the MCM can well simulate i-C5H12-NOx chamber experiments. The heterogeneous reaction of NO2 and water is an important source for OH radicals in the chamber experiments. The photolysis of HONO is responsible for the initiation of isopentane in photochemical reactions. The reaction rate constant for NO2 → HONO was determined to be 3.9×10-4―5.9×10-3 min-1 by conducting 3 sets of CO-NOx-air irradiations. 5 sets of isopentane-NOx irradiations under different conditions were performed in our chamber. Compared with the experiment with a low relative humidity (RH), an increase in RH can increase the reaction rate of NO2 with H2O, so that the peak ozone occurs earlier. When isopentane is predominant over NOx, the peak ozone concentration is largely dependent on NOx concentrations. 展开更多
关键词 臭氧浓度 异戊烷 计算机模拟 光化学反应 发生高峰期 潜能 雾室 氮氧化物
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