Papers by Keyword: Health Risk

Paper TitlePage

Authors: Yan Pang, Zhong Wei Wang
Abstract: In order to evaluate its potential health risk to human, the volatiles of the dried Pinus biomass were adsorbed and determined by TD-GC-MS. And the main constituents of volatiles at 210°С were 1,4-methanoazulene, decahydro-4,8, 8-trimethyl-9-methylene-(11.75%), acetic acid (6.38%), 1,4-methanoazulen-3-ol, decahydro-1,5,5,8a-tetramethyl-(5.76%), 1r-.alpha.-pinene (5.18%), 1-phenanthrenecarboxaldehyde, 7-et henyl-1,2,3,4,4a,4b,5,6,7,9,10,10a -dodecahydro- 1,4a,7-trimethyl-(4.78%), 2-furancarboxaldehyde, 5-(hydroxym ethyl)- (4.39%), 2-methyliminoperhydro-1,3-oxazine (3.67%), 1,3-benzodioxole, 5-(2-propenyl)- (3.33%), etc. So the dried Pinus biomass had biohealth function.
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Authors: Yan Pang, Zhong Wei Wang
Abstract: In order to evaluate its potential health risk to food, Py-GC/MS was used to analyze the high-grade resource recovery of benzene/ethanol extractives of the Cinnamomum camphora wood. Relative content of each component was determined by area normalization. The main constituents were hexadecanoic acid, oleic Acid, octadecanoic acid, 4-chloro-2-fluoroaniline, cyclohexane, 1,1-dimethyl-, 7-heptadecene, 17-chloro-, brucine, ergosta-4,6,22-trien-3.beta.-ol, etc. So the benzene/ethanol extractives of Cinnamomum camphora could be used as materials of biomedicine.
242
Authors: Zhong Feng Zhang, Xian Yan Zhou, Qing Zhi Ma
Abstract: The extractives of bamboo leaves were extracted and determined by Py-GC-MS. And the main constituents of extractives were tritriacontane(4.84%), 9-octadecyne(4.19%), ethyl alcohol(3.23%), 2-furanmethanamine, tetrahydro-(3.1%), .beta.-sitosterol acetate(2.84%), vitamin e(2.77%), triacontanoic acid, methyl ester(2.67%), .gamma.-sitosterol(2.33%), pyridine-3-carboxamide, oxime, n-(2-trifluoromethyl -phenyl)-(2.32%), nonacosane(2.15%), etc.
238
Authors: Wan Xi Peng, Lan Sheng Wang, Qing Ding Wu, Shi Long Xiang
Abstract: Poplar composite biomaterial, which self bonded under high temperature and pressure, is a new indoors materials. In order to evaluate its potential health risk to human settlements, the volatile organic compounds of poplar composite biomaterial were adsorbed and determined by TD-GC-MS. The result were: (1) The main constituents of volatiles at 40°С were acetic acid(50.6%), 1,2-benzenedicarboxylic acid, mono(2-ethylhexyl) ester(8.48%), [1,1':3',1''-terphenyl]-2'-ol(3.98%), 1,2-propanediol, 3-benzyloxy-1,2-d iacetyl-(3.12%), etc. (2) The main constituents of volatiles at 60°С were acetic acid(46.7%), 1,2-benzenedicarboxylic acid, mono(2-ethylhexyl) ester(7.93%), cedrol(5.53%), butane, 1-(benzyloxy)-2-[(benzylox y)methyl]- (5.43%), [1,1':3',1''-terphenyl]- 2'-ol(3.72%), 1-propene, 3-(2-cyclopentenyl)-2-m ethyl-1,1- diphenyl-(3.18%), etc. Generally, the poplar composite biomaterial was safe under 40-60°С.
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Authors: Wan Xi Peng, Qiu Xue, Feng Juan Wu, Xu Zhang, Zhong Feng Zhang
Abstract: Smoked bamboo, which was made by bamboo in high temperature smoke, is a new indoors materials. In order to evaluate its potential health risk to human settlements, the volatile organic compounds of smoked bamboo biomaterial were adsorbed and determined by TD-GC-MS. And the main constituents of volatiles at 60°С were cyclononasiloxane, octadecamethyl-(35.14%), acetic acid(23.27%), cyclotrisiloxane, hexamethyl- (9.53%), bicyclo[4.4.0]dec-1-ene,2-isoprop yl-5-methyl-9-methylene-(7.56%), silane, 1,4-phenylenebis[trimethyl(4.32%), 1,3-benzodioxole, 5-(2-propenyl)- (3.47%), cedrol(2.75%), etc. (2) The main constituents of volatiles at 130°С were acetic acid(43.78%), 2,5-furandione, dihydro-3- methylene-(16.57%), 1,3-benzodioxole, 5-(1-propenyl)-,(z)-(6.75%), octasiloxane, 1,1,3,3,5,5,7,7,9,9, 11,11,13, 13,15,15- hexadecamethyl -(4.09%), bicyclo[2.2.1]heptan-2-one, 1,7,7- trimethyl-, (1s)- (3.21%), etc. Generally, the smoked bamboo biomaterial was safe under 60-130°С.
1697
Authors: Wan Xi Peng, Qiu Xue, Feng Juan Wu, Xu Zhang, Zhong Feng Zhang
Abstract: In order to evaluate its potential health risk to human settlements, the volatiles of Pinus massoniana biomass which was used indoor, were adsorbed and determined by TD-GC-MS. And the main constituents of volatiles at 40°С were 1,4-methanoazulene,decahydro-4,8,8-trimethyl-9- methylene-(53.09%), bicyclo[2.2.1]heptan-2-one, 1,7,7- trimethyl-(11.4%), cyclooctasiloxane, hexadecamethyl-(9.28%), octasiloxane, 1,1,3,3,5,5,7,7,9,9, 11,11,13,13,15,15-hexadecamethyl- (5.09%), 1,3-benzodioxole, 5-(2-propenyl)- (3.19%), p-menth-1-en-8-ol(2.93%), tricyclo[5.4.0.0 (2,8)] \undec-9-ene, 2,6,6,9-tetramethyl-(2.43%), eucalyptol(2.03%), etc. The main constituents of volatiles at 60°С were 1,4-methanoazulene,decahydro-4,8, 8-trimethyl-9-methylene-(43.43%), bicyclo[2.2.1]heptan-2-one, 1,7,7- trimethyl-, (1r)- (7.34%), 1,6,10-dodecatriene, 7,11-dimethyl-3- methylene-(6.63%), 1,4-methanoazulen-9-ol,decahydro-1,5,5,8a-tetramethyl-(5.9%), octasiloxane, 1,1,3,3,5,5,7,7,9,9, 11,11,13,13,15,15-hexadecamethyl-(4.24%), 1r-.alpha.-pinene(4.1%), etc. So the Pinus massoniana biomass was safe under 60°С.
147
Authors: Wei Guo, Yao Feng
Abstract: Low-molecular-weight (LMW) PAHs in surface water of Lake Baiyangdian were determined to assess the potential health risk when using as drinking water for children and adults. The concentration of LMW PAHs in surface water were in the range of 77.26-760.16 ng L-1. Compared with similar results reported around the world, the level of LMW PAHs in this study was in the mid-range. The analysis of health risk indicated that risks from LMW PAHs in most part of the lake would not be risky to human health according to the acceptable risk level, while carcinogenic effects caused by LMW PAHs might occur if drinking water from Nanliuzhuang (NLZ), Shaochedian (SCD) and Laowangdian (LWD). Risks of LMW PAHs for children were apparently much higher than those caused by LMWs PAHs for adults.
840
Authors: An Ping Liu, Xiao Nan Sun, Xiao Song Sun, Wei Ren, Xing Xing Yao
Abstract: This paper conclude and determine the range of key parameters based on the effects of heavy metal Pb to Human blood-Pb health risk. According to China's reality, Pb levels in air, drinking water are 0.122~1.0 ug/m and 2~10ug/L; ingestion of Pb from food by children of 0~6 years old is 10~25ug/d. Pb cut-off value for residential land soil are calculated with the Integration Exposure Uptake Biokinetic Model (IEUBK). The result shows the Pb cut-off value for residual land is 294.5mg/kg. The result provides a reference for cut-off value of Content of lead in soil, and brings convenience for the research and practice of remediation Pb contamination in soil.
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Authors: Li Na Shi, Xun Xu, Xu Dong Zhao, Xiao Yan Dou, Qian Qian Zhao
Abstract: The human risks of As and heavy metals (Cu, Ni, Cr, Pb, Cd and Hg) in fine particulate matter (PM2.5) in Xining, China is investigated here in this study. Cu, As and Pb are the most abundant elements in stationary monitoring station for atmospheric pollution and mountain Najia. As, Pb and Cr are the most abundant elements in the park of organisms and Xining Special Steel between the studied metals and metalloids in PM2.5. Pb and As showed a higher bio-accessibility. It has been shown that the carcinogenic risks of As, Cd, Cr and Ni in PM2.5 via dermal contact and inhalation exposure are within the acceptable level (<1×10-4) for both children and adults, but there is a potential carcinogenic risk posed by Pb via ingestion. As for non-carcinogenic health risks, the hazard index values for all the studied elements suggested no health risks via ingestion and dermal contact, but a potential one via inhalation of adults. Values of hazard quotient and hazard index indicated the non-carcinogenic risks from the studied metals and metalloids to children via ingestion, dermal contact and inhalation pathways during heating period in Xining given the present air quality .
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Authors: Dan Jin, Dong Mei Zheng, Li Na Sun
Abstract: The aim of this work was to study Pb accumulation in indoor dust, and health risk of human due to dust exposure. Risk assessment of Pb to human health: Pb is most harmful to human body. The reasons of non-carcinogenic risk in residential area may be that indoor is not swept regularly, in addition, indoor decoration, building materials and other factors may also affect the content of Pb in dust. Non-carcinogenic risk in children is not only more than adults but also beyond the safety threshold. Indoor dust has been a threat to the health of children in Shenyang.
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