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作者： Jinheng Zhang Chao Han Shoucai Zhang Institute of Eco-Environment and Agriculture Information and College of Environment and Safety EngineeringQingdao University of Science and Technology Qingdao Academy of Agricultural Sciences

Exposure of rice to high SO levels caused chlorophyll loss and increased peroxidase *** leaf transmittance spectra of three rice varieties were measured at different growth stages to select the characteristic *** order to estimate the impacts of SO on rice chlorophyll and peroxidase activity via transmittance spectra prediction models,it is necessary to develop and validate transmittance spectra vegetation indices which were calculated by utilizing transmittance spectra characteristic *** indices called blue/yellow/red/ edge transmissivity spectra ratio of the difference vegetation indices(BTI/YTI/BTI) were calculated using selected characteristic *** chlorophyll content and peroxidase activity had more significant correlations(P < 0.01) to these indices than to single characteristic *** coefficients of correlations coefficients were reduced and less than 10%using these vegetation indices except for the correlation coefficients between peroxidase activity and three indices(YTI,BTI and RTI).Regression analysis indicted that YTI,YTI,YTI,YTI and YTI were the good predictors indicator estimating peroxidase activity and chlorophyll content,and YTI was proved an effective method to estiamte chlorophyll content with liner regression models.

关键词： sulphur dioxide Rice Chlorophyll Peroxidase Activity Transmittance Spectra

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Estimating the Impacts of sulphur dioxide on Rice via Chlorophyll and Peroxidase Activity Transmittance Spectra Prediction Models

Estimating the Impacts of Sulphur Dioxide on Rice via Chloro...

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第三届国际计算机及计算技术农业应用学术会议

作者： Jinheng Zhang~(1,*),Chao Han~1,and Shoucai Zhang~2 1 Institute of Eco-Environment and Agriculture Information,and College of Environment and Safety Engineering, Qingdao University of Science and Technology,Qingdao,PA 266042,China 2 Qingdao Academy of Agricultural Sciences,Qingdao,PA 266100,China

Exposure of rice to high SO levels caused chlorophyll loss and increased peroxidase activity. The leaf transmittance spectra of three rice varieties were measured at different growth stages to select the characteristic *** order to estimate the impacts of SO on rice chlorophyll and peroxidase activity via transmittance spectra prediction models,it is necessary to develop and validate transmittance spectra vegetation indices which were calculated by utilizing transmittance spectra characteristic *** indices called blue/yellow/red/ edge transmissivity spectra ratio of the difference vegetation indices(BTI/YTI/BTI) were calculated using selected characteristic *** chlorophyll content and peroxidase activity had more significant correlations (P<0.01) to these indices than to single characteristic *** coefficients of correlations coefficients were reduced and less than 10%using these vegetation indices except for the correlation coefficients between peroxidase activity and three indices(VTI,BTI and RTI). Regression analysis indicted that VTI,YTI YTI,YTI and YTI were the good predictors indicator estimating peroxidase activity and chlorophyll content,and YTI was proved an effective method to estiamte chlorophyll content with liner regression models.

关键词： sulphur dioxide Rice Chlorophyll Peroxidase Activity Transmittance Spectra

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Preparation of Cs-Rb-V series sulphuric acid catalyst

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中国有色金属学会会刊：英文版 2001年第4期11卷 595-598页

作者：陈振兴杨刚叶华 Cent S Univ Coll Chem & Chem Engn Changsha 410083 Peoples R China

Cs Rb V series low temperature sulphuric acid catalyst was prepared for the first time by using carbonized mother liquor containing alkali metal salts. The results show that the conversion of SO 2 on catalyst prepared directly with carbonized mother liquor could reach to 24.8% at 410?℃. If n (Na)/ n (V) was adjusted properly, the conversion of SO 2 could be increased to 35.6% at 410?℃. Refined carbonized mother liquor could make the catalytic activity even higher at low temperature, the conversion of SO 2 could be increased to 36.65% at 410?℃. The catalyst was examined with differential thermal analysis. It was found that both endothermic peaks and exothermic peaks of catalyst shifted forward obviously and the catalyst possessed higher activity at low temperature.

关键词： sulphuric acid catalyst sulphur dioxide alkali metal element low temperature activity promoter

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An estimate of the conversion rates of SO_2 to SO_4^(2-)- and NO_2 to HNO_(3+) NO_3^- for the evaluation air pollution in Beijing

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Journal of Environmental Sciences 1990年第1期2卷 41-48页

作者： Kazuhiko Sakamoto Katsunori Kimijima Tadao Suzuki Masahiro Uchiyama Yoshikazu Hashimoto Hisao ohta Yasuaki maeda Nobutoshi Horiuchi Shin Suzuki Saitama University Japan.Saitama University Japan.Automobile Research Institute Japan.The National Institute Environmental Sciences Japan.Keio University Japan.Chiba Environmental Protection Association Japan.Osaka Prefectural University Japan.Chiba University Japan.Chiba University Japan.

The conversion rates of SO2 to SO42- and NO2 to HNO3+NO3- are estimated from the field-data obtained in Beijing in summer, 1988. The results show that the conversion rate of NO2 is about four times as much as that of SO2; The conversion rates have a diurnal variation in a day. On the average, the rate of SO2 is estimated to be 4.7% h-1 during the daytime and 3.4% h-1 during the nighttime. Similarly, the rate of NO2 is estimated to be 17.2% h-1 and 12% h-1 respectively.

关键词： sulphur dioxide nitrogen oxide computer modeling conversion rate oxidation.

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Urban Air Quality Assessment of Kathmandu by Passive Sampling Technique

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Journal of Environmental Science and Engineering(A) 2012年第4期1卷 467-483页

作者： Rejina Maskey Byanju Mohan Bikram Gewali Krishna Manandhar Bidya B. Pradhan Pradeep Dangol Martin Ferm Central Department of Environmental Science Tribhuvan University Kathmandu 5003242 Nepal Central Department of Chemistry Tribhuvan University Kathmandu 5003242 Nepal International Centre for Integrated Mountain Development （ICIMOD） Kathmandu 5003242 Nepal IVL Swedish Environment Research Institute Goteborg SE-40014 Sweden

This paper presents an assessment of air quality of the Kathmandu valley, capital city of Nepal. This is the largest urbanized area in the country of about 300 km2. In the last two decades an intensive development of demographic, traffic and industry growth in the region was observed which was reflected on the air quality degradation. In order to evaluate the urban air quality in Kathmandu, a field monitoring network for particle deposition, nitrogen dioxide （NO2） and sulphur dioxide （SO2） by passive sampling with high space resolution was implemented in co-operation with IVL-Sweden. The net work composed of 60 monitoring sites distributed in a grid of 1 × 1 km2 covering all over the main city and some rural valley. Monitoring were carried out for two seasons, rainy and dry as two campaign monitoring. The diffusive samplers were prepared and analyzed in IVL, Sweden. Good agreements in particle deposition between the two campaigns were observed. The particle deposition to the surrogate surface varied between 3 and 608 μg@cm2·monthl for the monitoring periods. The NOz concentrations on the other hand were quite similar in the two campaigns, and the SO2 concentrations were much lower in the first campaign compared to the second. The ranges of NO2 and SO2 concentrations were found to be from 5.6 to 52.6 μg/m3 and 0.6 to 23.4 μg·m-3 respectively. Arc Info/Arc map GIS 9.2 software was used for production of maps of spatial distribution of all the three parameters in the valley. Seasonal variation and traffic influence were also studied. Local meteorological effects in the distribution of pollutants were clearly observed and the NO2 concentrations were strictly related with traffic intensity.

关键词： Urban air quality particle deposition nitrogen dioxide sulphur dioxide passive sampling diffusive sampling.

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Female Head, Food Stamps, Ethnicity and Air Pollution: Confounders or Causes of Heart Disease in Texas

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Open Journal of Epidemiology 2016年第2期6卷 146-153页

作者： Faye Anderson Najla N. Al-Thani Independent Scholars Houston TX USA

One in every four deaths in the United States is attributed to heart disease. While the ethnic variations have not been momentous, the socioeconomic disparities of heart disease incidence need to be further investigated. Moreover, exposure to air pollutants has been documented to cause heart disease. This secondary-data study investigates the effects of air pollutants as well as socioeconomic factors on hospitalization rate of heart disease in Texas. The rates for the five sub-diagnoses of cardiovascular disease, heart attack, stroke, hypertension and heart disease were linked to ozone, fine particulate matter, carbon monoxide, nitrogen dioxide, sulphur dioxide and socioeconomic status factors at the county level. These were college education attainment, households with female heads, percentage of users of food stamps, ethnicities, living near a park and living in houses with severe housing problems. Spatial lag modelling was conducted to estimate the statistical significance of the independent variables on the five sub-diagnoses of heart disease. Fine particulate matter, sulphur dioxide and being African American were significant to all the outcomes. Living in a household with female head was significant to stroke and hypertension. Using food stamps was significant to cardiovascular disease, heart attack and heart disease. Fine particulate matter and sulphur dioxide increase the risk of heart disease by a factor of three to twenty two times, respectively. Whereas low socioeconomic status increases the risk of heart disease by a factor of up to four times. The results of the effect of particulate air and sulphur dioxide pollution among people in low social class especially African Americans. The vicious cycle of heart disease and low socioeconomic status call for societal and policy makers’ attention through methodical interventions to address the two significant issues of industrial facilities site allocation and stationary emission resources.

关键词： Heart Disease Female Head Food Stamps sulphur dioxide Particulate Matter

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