Based on the monitoring data of visibility,particulate matter（ PM2. 5 and PM10） and atmospheric pollutants（ SO2,NO2,CO,and O3）,and meteorological factors（ temperature,humidity,and wind speed） at the six automati...Based on the monitoring data of visibility,particulate matter（ PM2. 5 and PM10） and atmospheric pollutants（ SO2,NO2,CO,and O3）,and meteorological factors（ temperature,humidity,and wind speed） at the six automatic air monitoring stations in Binzhou City from December 2016 to February 2017,the correlations between visibility and influencing factors were analyzed to study the main influencing factors of atmospheric visibility. The results showed that the daily average concentration of particulate matter negatively correlated with atmospheric visibility,and the correlation between PM2. 5 concentration and atmospheric visibility was more obvious than that of PM10 concentration. Among atmospheric pollutants,the daily average concentration of CO,NO2 and SO2 also negatively correlated with atmospheric visibility,while there was a positive correlation between visibility and the daily average concentration of O3. Daily average temperature and wind speed positively correlated with visibility,while relative humidity negatively correlated with visibility. Wind speed,relative humidity and PM2. 5 had strong correlation with visibility,and the linear correlation coefficient R2 was 0. 501 6,0. 446 6,and 0. 205 8 respectively,so wind speed,relative humidity,and PM2. 5 were the main factors influencing the decrease of atmospheric visibility on a hazy day in winter.展开更多
Based on a long-term location test lasting for 20 years, the accumulation and migration of phosphorus in purple soil was studied. The results showed that P2Os input in paddy-upland rotation was 120.0 kg/（ hm2 · ...Based on a long-term location test lasting for 20 years, the accumulation and migration of phosphorus in purple soil was studied. The results showed that P2Os input in paddy-upland rotation was 120.0 kg/（ hm2 · a） （a conventional level of phosphorus application）, and P had a surplus of 53.9 kg/（hm2 · a）. Phosphorus accumulating in soil increased available phosphorus （Olsen-P） content, and the positive correlation between P changing balance and Olsen-P change in wheat-rice rotation was extremely significant. The mixed application of organic fertilizer and chemical P fertilizer can speed up accumulation of available phosphorus in soil. Olsen-P content in all treatments with P fertilizer was higher in 0 -60 cm soil than that of treatments without P fertilizer, and Phosphorus applied in surface soil moved to soil at a depth of 60 cm, increasing risk of P leakage and loss. The migration of phosphorus in soil is affected by P input, type of organic fertilizer and planting method. The quantities of phosphorus moving down increased with the increase of P input, and the application of pig manure can lead to migration of phosphorus in soil more easily compared with straw. The migration of phosphorus from soil to water mainly occurred in the first ten days after rice was transplanted, and paddy field drainage should not be conducted in the first 30 days after rice was transplanted.展开更多
As gradual improvement of living environment and indoor decoration form diversification, the indoor air pollution has become the ＂invisi- ble killer＂ harming human health, and has been listed as one of ten big threa...As gradual improvement of living environment and indoor decoration form diversification, the indoor air pollution has become the ＂invisi- ble killer＂ harming human health, and has been listed as one of ten big threats to human health by the World Health Organization, which also be- came one of hot issues concerned by countries all over the world. In this paper, through the determination of formaldehyde in some houses of Binzhou, the release of formaldehyde with the increase of time was explored; change of formaldehyde in the same residence in different functional areas was analyzed; the influence of the temperature, humidity and plant to formaldehyde content was also analyzed.展开更多
By using potassium permanganate impregnation method,common activated carbon was processed in 0. 079 mol/L KMnO4 solution at 650℃ to obtain modified activated carbon loaded with manganese oxide,and then different quan...By using potassium permanganate impregnation method,common activated carbon was processed in 0. 079 mol/L KMnO4 solution at 650℃ to obtain modified activated carbon loaded with manganese oxide,and then different quantities of common activated carbon and modified activated carbon were used to adsorb 0. 3 mg/m^3 formaldehyde. The results showed that carbon and manganese atoms on the surface of modified activated carbon could adsorb formaldehyde,and the removal rate of 0. 3 mg/m^3 formaldehyde by 30 g of modified activated carbon reached 80%,increased one time compared with that by common activated carbon. Different amounts of activated carbon had various effects on the adsorption of formaldehyde,and the best usage of common activated carbon and modified activated carbon was 100 and 30 g respectively.展开更多
Through exploring the cumulative contents of Pb, Cu and Cd, the 3 common heavy metals in air pollution, in leaves of some widely-applied green plants in different functional areas in urban districts of Binzhou City, t...Through exploring the cumulative contents of Pb, Cu and Cd, the 3 common heavy metals in air pollution, in leaves of some widely-applied green plants in different functional areas in urban districts of Binzhou City, this paper figured out its relationship with functional areas in the city, and whether green plants are selective in adsorbing heavy metals or not. The research found that cumulative content of Cu and Cd varied greatly in leaves of the same species in different functional areas, and also in leaves of different species in the same area. Populus tomentosa and Sophora japonica had the strongest capacity of adsorbing Pb, Cu and Cd in the air, which is a useful reference for the urban landscaping of Binzhou City.展开更多
文摘Based on the monitoring data of visibility,particulate matter（ PM2. 5 and PM10） and atmospheric pollutants（ SO2,NO2,CO,and O3）,and meteorological factors（ temperature,humidity,and wind speed） at the six automatic air monitoring stations in Binzhou City from December 2016 to February 2017,the correlations between visibility and influencing factors were analyzed to study the main influencing factors of atmospheric visibility. The results showed that the daily average concentration of particulate matter negatively correlated with atmospheric visibility,and the correlation between PM2. 5 concentration and atmospheric visibility was more obvious than that of PM10 concentration. Among atmospheric pollutants,the daily average concentration of CO,NO2 and SO2 also negatively correlated with atmospheric visibility,while there was a positive correlation between visibility and the daily average concentration of O3. Daily average temperature and wind speed positively correlated with visibility,while relative humidity negatively correlated with visibility. Wind speed,relative humidity and PM2. 5 had strong correlation with visibility,and the linear correlation coefficient R2 was 0. 501 6,0. 446 6,and 0. 205 8 respectively,so wind speed,relative humidity,and PM2. 5 were the main factors influencing the decrease of atmospheric visibility on a hazy day in winter.
基金Supported by the Scientific and Technological Development Planning Project of Binzhou City(2013ZC1002)
文摘Based on a long-term location test lasting for 20 years, the accumulation and migration of phosphorus in purple soil was studied. The results showed that P2Os input in paddy-upland rotation was 120.0 kg/（ hm2 · a） （a conventional level of phosphorus application）, and P had a surplus of 53.9 kg/（hm2 · a）. Phosphorus accumulating in soil increased available phosphorus （Olsen-P） content, and the positive correlation between P changing balance and Olsen-P change in wheat-rice rotation was extremely significant. The mixed application of organic fertilizer and chemical P fertilizer can speed up accumulation of available phosphorus in soil. Olsen-P content in all treatments with P fertilizer was higher in 0 -60 cm soil than that of treatments without P fertilizer, and Phosphorus applied in surface soil moved to soil at a depth of 60 cm, increasing risk of P leakage and loss. The migration of phosphorus in soil is affected by P input, type of organic fertilizer and planting method. The quantities of phosphorus moving down increased with the increase of P input, and the application of pig manure can lead to migration of phosphorus in soil more easily compared with straw. The migration of phosphorus from soil to water mainly occurred in the first ten days after rice was transplanted, and paddy field drainage should not be conducted in the first 30 days after rice was transplanted.
文摘As gradual improvement of living environment and indoor decoration form diversification, the indoor air pollution has become the ＂invisi- ble killer＂ harming human health, and has been listed as one of ten big threats to human health by the World Health Organization, which also be- came one of hot issues concerned by countries all over the world. In this paper, through the determination of formaldehyde in some houses of Binzhou, the release of formaldehyde with the increase of time was explored; change of formaldehyde in the same residence in different functional areas was analyzed; the influence of the temperature, humidity and plant to formaldehyde content was also analyzed.
文摘By using potassium permanganate impregnation method,common activated carbon was processed in 0. 079 mol/L KMnO4 solution at 650℃ to obtain modified activated carbon loaded with manganese oxide,and then different quantities of common activated carbon and modified activated carbon were used to adsorb 0. 3 mg/m^3 formaldehyde. The results showed that carbon and manganese atoms on the surface of modified activated carbon could adsorb formaldehyde,and the removal rate of 0. 3 mg/m^3 formaldehyde by 30 g of modified activated carbon reached 80%,increased one time compared with that by common activated carbon. Different amounts of activated carbon had various effects on the adsorption of formaldehyde,and the best usage of common activated carbon and modified activated carbon was 100 and 30 g respectively.
基金Sponsored by Binzhou University Scientific Research Fund(BZXYL1501)Sate Administration of Work Safety 2013 Sci-Tech Program of Key Technologies for Preventing Major Production Safety Accidents(2013-05)
文摘Through exploring the cumulative contents of Pb, Cu and Cd, the 3 common heavy metals in air pollution, in leaves of some widely-applied green plants in different functional areas in urban districts of Binzhou City, this paper figured out its relationship with functional areas in the city, and whether green plants are selective in adsorbing heavy metals or not. The research found that cumulative content of Cu and Cd varied greatly in leaves of the same species in different functional areas, and also in leaves of different species in the same area. Populus tomentosa and Sophora japonica had the strongest capacity of adsorbing Pb, Cu and Cd in the air, which is a useful reference for the urban landscaping of Binzhou City.
