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Species and release characteristics of VOCs in furniture coating process
2019
Qi, Yiqing | Shen, Liming | Zhang, Jilei | Yao, Jia | Lu, Rong | Miyakoshi, Tetsuo
Volatile organic compounds (VOCs) are an important factor affecting ambient air quality, and furniture production is one of the important sources of VOC pollution. High VOC concentrations have adverse effects on the environment and worker welfare in furniture factories. In order to control VOC emissions in a furniture workshop, the VOC species and concentration distributions were examined. Qualitative analysis of VOC species was carried out by headspace gas chromatography/mass spectrometry. The results showed that VOCs from a furniture workshop were mainly 12 substances including acetate, toluene, and xylene compounds. The heights and representative positions of VOCs released during the coating process were determined, and the results showed that VOC concentrations depended on environmental and height factors. The concentration of VOCs decreased with increasing altitude and reached a maximum concentration at 0.4 m above the ground. Because the concentration of VOCs varied with temperature, humidity, air pressure, and amount of spray paint, this paper established functional relationships between VOC concentrations and temperature, humidity, air pressure, and amount of spray paint. These results provide a theoretical basis for furniture workshops to automatically monitor and control VOCs.VOCs from the furniture workshop were mainly composed of 10 substances including acetate, toluene, and xylene compounds.
显示更多 [+] 显示较少 [-]Artificial light pollution inhibits plant phenology advance induced by climate warming
2021
Lian, Xihong | Jiao, Limin | Zhong, Jing | Jia, Qiqi | Liu, Jiafeng | Liu, Zejin
Natural photic regime has been drastically altered by the artificial night sky luminance. Despite evidence of sufficient light brightness inducing plant physiology and affecting phenology, generalization regarding effects of light pollution on plant phenology across species and locations is less clear. Meanwhile, the relative contributions and joint effects of artificial light pollution and climate change or other anthropic stressors still remain unknown. To fill this knowledge gap, we utilized in situ plant phenological observations of seven tree species during 1991–2015 in Europe, night-time light dataset and gridded temperature dataset to investigate the impacts of the artificial light pollution on spatial-temporal shifts of plant phenological phases under climatic warming. We found 70% of the observation sites were exposed to increased light pollution during 1992–2015. Among them, plant phenological phases substantially delayed at 12–39% observation sites of leaf-out, and 6–53% of flowering. We also found plant species appeared to be more sensitive to artificial light pollution, and phenology advancement was hindered more prominently and even delay phenomenon exhibited when the color level showed stronger sky brightness. Linear mixed models indicate that although temperature plays a dominant role in shifts of plant phenological phases at the spatial scale, the inhibitory effect of artificial light pollution is evident considering the interactions. To our knowledge, this study is the first to quantitatively establish the relationship between artificial light pollution and plant phenology across species and locations. Meanwhile, these findings provide a new insight into the ecological responses of plant phenology to the potential but poorly understood environmental stressors under this warmer world and call for light pollution to be accorded the equal status as other global change phenomena.
显示更多 [+] 显示较少 [-]Biological variation in sensitivity to N-heterocyclic PAHs; effects of acridine on seven species of micro-algae
1997
Dijkman, N.A. | Vlaardingen, P.L.A. van | Admiraal, W.A. (Amsterdam Research Institute for Substances in Ecosystems (ARISE), University of Amsterdam, Department of Aquatic Exotoxicology, Kruislaan 320, 1098 SM, Amsterdam (Netherlands))
Effect of geographical location on species composition, vegetation structure, diversity and phytoindicative characteristics in pine forests
1997
Roo-Zielinska, E. | Solon, J. (Institute of Geography and Spatial Organization, Polish Academy of Sciences, 00-818, Warsaw, Twarda 51/55 (Poland))
Congener specific transfer of PCDD/Fs from air to cows' milk: an evaluation of current modelling approaches
1997
Douben, P.E.T. | Alcock, R.E. | Jones, K.C. (Her Majesty's Inspectorate of Pollution, 2 Marsham Street, London SW1P 3EB (United Kingdom))
Density patterns of gall mites (Acarina: Eriophyidae) in a polluted area
1996
Koricheva, J. | Lappalainen, J. | Vuorisalo, T. | Haukioja, E. (Laboratory of Ecological Zoology, Department of Biology, University of Turku, 20014, Turku, Finland)
Seasonal changes in metal levels (Cu, Pb, Cd, Zn and Ca) within the grey field slug, Deroceras reticulatum, living in a highly polluted habitat
1989
Greville, R.W. | Morgan, A.J. (School of Pure and Applied Biology, University of Wales College of Cardiff, PO Box 915, Cardiff, CF1 3TL (United Kingdom))
Bioaccumulation and physiological effects of excess lead in a roadside pioneer species Sonchus oleraceus L
1997
Xiong ZhiTing (Department of Environmental Science, Wuhan University, Wuhan, Hubei 430072 (China))
Responses of indicator bacteria to forest soil amended with municipal sewage sludge from aerated and non-aerated ponds
1996
Vasseur, L. | Cloutier, C. | Labelle, A. | Duff, J.N. | Beaulie, C. | Ansseau, C. (Department of Biology, Faculty of Sciences, Universite de Sherbrooke, Quebec J1K 2R1 (Canada))
Concentrations of polychlorinated dibenzo-p-dioxins, dibenzofurans and non-ortho substituted biphenyls in polar bear milk from Svalbard (Norway)
1995
Oehme, M. | Biseth, A. | Schlabach, M. | Wiig, O. (Norwegian Institute for Air Research, P.O. Box 100, N-2007 Kjeller (Norway))