期刊文献+
共找到12篇文章
< 1 >
每页显示 20 50 100
An Estimation of the Daily Intake of Di(2-ethlhexyl) Phthalate(DEHP) among Workers in Flavoring Factories 被引量:2
1
作者 LU Jie ZHANG Jing +1 位作者 WANG Zhu Tian FAN Yong Xiang 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2014年第6期419-425,共7页
Objective To estimate the daily intake of DEHP among workers in flavoring factories. Methods 71 workers in two flavoring manufacturers, 27 administrators in those factories and 31 laboratory technicians in a research ... Objective To estimate the daily intake of DEHP among workers in flavoring factories. Methods 71 workers in two flavoring manufacturers, 27 administrators in those factories and 31 laboratory technicians in a research institute were recruited and assigned to exposure group, control group 1 and control group 2 respectively. Their urinary DEHP metabolites, mono(2-ethylhexyl) phthalate (MEHP), mono-(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP), mono-(2-ethyl-5-oxohexyl) phthalate (MEOHP), were detected by isotope dilution-ultra performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS). The urinary metabolites concentrations were converted into DEHP intake levels using two pharmacokinetic models: the urine creatinine-excretion (UCE) one and the urine volume (UV) one. Results No significant differences were found among the three groups. Based on the urinary concentrations of Z3MEHP, we got a median daily DEHP intake of 3.22 or 1.85 μg/kg body-weight/day applying the UV or UCE models respectively. Depending on the UV model, three subjects (2.34%) exceeded the RfD value given by US EPA and the P50 of estimate daily DEHP intakes accounted for 16.10% of the RfD value. No subjects exceeded the limitation depending on the UCE model. Conclusion The workers in flavoring factories were not supposed to be the high DEHP exposure ones and their exposure level remained at a low risk. 展开更多
关键词 Di (2-ethylhexyl) phthalate (DEHP) estimate daily intake BIOMONITORING Occupationa exposure
下载PDF
北京女性尿液中双酚A及氯代双酚A的浓度和风险评价 被引量:9
2
作者 陈默 范湛蓝 +3 位作者 高群 高福梅 牟迪 胡建英 《中国环境科学》 EI CAS CSCD 北大核心 2015年第9期2853-2860,共8页
建立了有机相丹酰化衍生-UPLC-MS-MS人体尿液样品中双酚A(BPA)及4种氯代双酚A(氯代BPA)的检测方法,对北京地区40个女性尿液样品进行了检测.结果表明:BPA和一氯、二氯、三氯、四氯BPA的检出率分别为90%、96%、90%、52%和45%;浓度分别为(1... 建立了有机相丹酰化衍生-UPLC-MS-MS人体尿液样品中双酚A(BPA)及4种氯代双酚A(氯代BPA)的检测方法,对北京地区40个女性尿液样品进行了检测.结果表明:BPA和一氯、二氯、三氯、四氯BPA的检出率分别为90%、96%、90%、52%和45%;浓度分别为(1.30±1.24),(0.40±0.37),(0.41±0.51),(0.18±1.49),(0.46±0.35)ng/m L,4种氯代BPA的总浓度为1.45ng/m L,和BPA浓度相仿.4种氯代BPA的BPA等当量浓度为4.84ng/m L,是BPA浓度的2.2倍.40个尿液样本BPA等当量浓度符合对数正态分布,超过BPA的糖尿病发生阈值(0.05%发病风险)5.7ng/m L的概率为19.2%.人体暴露氯代BPA的健康风险应该引起重视. 展开更多
关键词 氯代双酚A 丹酰化衍生 摄入量 等当量 LC-MS-MS
下载PDF
Assessing the health risk of heavy metals in vegetables to the general population in Beijing,China 被引量:46
3
作者 SONG Bo LEI Mei +4 位作者 CHEN Tongbin ZHENG Yuanming XIE Yunfeng LI Xiaoyan GAO Ding 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2009年第12期1702-1709,共8页
A systematic survey of As, Cd, Cr, Cu, Ni, Pb and Zn concentrations in vegetables from 416 samples (involving 100 varieties) in Beijing was carried out for assessing the potential health risk to local inhabitants. T... A systematic survey of As, Cd, Cr, Cu, Ni, Pb and Zn concentrations in vegetables from 416 samples (involving 100 varieties) in Beijing was carried out for assessing the potential health risk to local inhabitants. The results indicated that the metal concentrations in vegetables ranged from 〈 0.001 to 0.479 μg/g fresh weight (fw) (As), 〈 0.001 to 0.101 μg/g fw (Cd), 〈 0.001 to 1.04 μg/g fw (Cr), 0.024 to 8.25μg/g fw (Cu), 0.001 to 1.689 μg/g fw (Ni), 〈 0.001 to 0.655 μg/g fw (Pb) and 0.01 to 25.6 μg/g fw (Zn), with average concentrations of 0.013, 0.010, 0.023, 0.51, 0.053, 0.046 and 2.55 μg/g fw, respectively. The results showed that the concentrations of As, Cr, Cu, Cd, Pb and Ni in vegetables from open-fields were all significantly higher than those grown in greenhouses. In addition, in local-produced vegetables, all HMs except Zn were significantly higher than those in provincial vegetables. The estimated daily intake (EDI) of As, Cd, Cr, Cu, Ni, Pb and Zn from vegetables was 0.080, 0.062, 0.142, 3.14, 0.327, 0.283 and 15.7 μg/(kg body weight (bw).d) for adults, respectively. Arsenic was the major risk contributor for inhabitants since the target hazard quotient based on the weighted average concentration (THQw) of arsenic amounted to 44.3% of the total THQ (TTHQ) value according to average vegetable consumption. The TTHQ was lower than 1 for all age groups, indicating that it was still safe for the general population of Beijing to consume vegetables. 展开更多
关键词 heavy metals health risk estimated daily intake BEIJING VEGETABLE
下载PDF
Evaluation by ICP-MS of Essential, Nonessential and Toxic Elements in Brazilian Fish and Seafood Samples 被引量:2
4
作者 Denise Grotto Bruno Lemos Batista +1 位作者 Maria Fernanda Hornos Carneiro Fernando Barbosa Jr. 《Food and Nutrition Sciences》 2012年第9期1252-1260,共9页
Fish is considered one of the healthiest foods due to the high levels of several important cardioprotective compounds such as long chain omega-3 polyunsaturated fatty acids and vitamin E. However, due to widespread en... Fish is considered one of the healthiest foods due to the high levels of several important cardioprotective compounds such as long chain omega-3 polyunsaturated fatty acids and vitamin E. However, due to widespread environmental pollution, high levels of contaminants may also be present in fish and seafood samples, which may counteract the beneficial effects of consumption of this food. With this in mind, the aims of this study were: 1) to examine both toxic and essential chemical elements in seafood and river and sea fish samples sold in different Brazilian regions by inductively coupled plasma mass spectrometer (ICP-MS);2) to estimate the daily intake of these chemical elements by Brazilians. The toxic elements Ba, Cd, Pb, Sr, V and Sb were found in higher concentrations in seafood than in either sea or river fish, while As concentrations were higher in both seafood and sea fish than in river fish. On the other hand, Hg levels were higher in river and sea fish. Concentrations of the essential chemical elements Co, Mn, Cu, Fe, Mg, Zn and Mo were significantly higher in seafood compared with both sorts of fish except for Se, whose levels were similar in seafood and sea fish. Daily intake of all chemical elements was estimated on the basis of a calculation of the amount of fish consumed by Brazilian households (mean fish and seafood consumption of 11.0 g/person/day). The amount of toxic element in fish and seafood did not represent a risk for the Brazilian people. Moreover, fish and seafood seem to be a good source of selenium. 展开更多
关键词 River FISH SEA FISH SEAFOOD Toxic ELEMENTS ESSENTIAL ELEMENTS estimated daily intake ICP-MS
下载PDF
Trace and Macro Elements Concentrations in Selected Fresh Fruits, Vegetables, Herbs, and Processed Foods in North Carolina, USA 被引量:1
5
作者 Tsdale F. Mehari LaVana Greene +1 位作者 A’ja L. Duncan Sayo Olawale Fakayode 《Journal of Environmental Protection》 2015年第6期573-583,共11页
Fresh fruits, vegetables, herbs, and processed foods continue to be the major sources of essential trace elements in humans’ diet required for proper body development. However, food products can potentially be contam... Fresh fruits, vegetables, herbs, and processed foods continue to be the major sources of essential trace elements in humans’ diet required for proper body development. However, food products can potentially be contaminated by toxic heavy metals (HMs) from environmental contamination or industrial food processing. The deleterious health implications of essential trace and macro elements’ deficiency and toxic consequences of HMs in humans necessitate proactive monitoring of the essential trace elements and HMs concentrations in the humans diet to ensure public health safety. Accordingly, this study investigated a comparative analysis of essential elements and potential toxic HMs concentration in food products in the Greensboro metropolis, North Carolina, USA. A total of 49 food samples comprising of 16 difference fresh fruits, 17 fresh vegetables, 4 herbs, and 12 processed foods were purchased from local grocery stores and analyzed for iron (Fe), calcium (Ca), magnesium (Mg), nickel (Ni), zinc (Zn), copper (Cu), lead (Pb), cadmium (Cd), and chromium (Cr) by the use of flame atomic absorption spectrometry (FAAS). The concentrations of elements were subjected to a regression analysis to further gain insight of the inter-element association in the food samples. The results of the study showed high variability in the concentrations of elements in the fresh fruits, vegetables, herbs, and processed foods. The overall average concentrations of Ca (1501 μg/g), Mg (186.5 μg/g), Fe (55.8 μg/g), Zn (22.2 μg/g), Pb (10.2 μg/g), Cu (5.8 μg/g), Cr (<0.1 μg/g), Cd (<0.1 μg/g), and Ni (<0.04 μg/g) were obtained in all food samples categories. The elements concentrations were generally poorly correlated in the food samples. However, a strong inter-element association between Cu and Fe concentration (R2 = 1.000) and a weak association between Ca and Fe (R2 = 0.5609) were found in the food samples. A survey questionnaire was administered to 396 participants in the Greensboro metropolis to evaluate the food consumption pattern and a daily/weekly dietary estimate intake of vegetables, fruits, herbs and processed foods. The results of the food survey analysis showed that the amount of vegetables, fruits, herbs, and processed foods dietary intake varied widely. In general, the participants consumed more processed foods than vegetables, fruits, and herb foods. The low dietary intake of vegetables, fruits, herbs suggests that most participants may be obtaining insufficient essential trace elements and other vital nutrients necessary for normal growth and body development in their diet. 展开更多
关键词 Foods Trace-Elements-Analysis Atomic-Absorption Spectroscopy Inter-Element-Association daily/weekly-dietary intake estimate Foods-Consumption-Pattern-Recognition
下载PDF
Assessment of Metal Accumulation in the Vegetables and Associated Health Risk in the Upper-Most Ganga-Yamuna Doab Region, India
6
作者 Vivek Kumar Gaurav Dushyant Kumar Chhaya Sharma 《American Journal of Plant Sciences》 2018年第12期2347-2358,共12页
The present study indicates the status of metal contamination in the vegetables/crops grown in the upper most Ganga-Yamuna doab region of India and associated health risk. Commonly grown vegetables and crops were samp... The present study indicates the status of metal contamination in the vegetables/crops grown in the upper most Ganga-Yamuna doab region of India and associated health risk. Commonly grown vegetables and crops were sampled and analyzed for the metal contamination. Maximum concentration (mg/kg) of Cd and Cr, was observed in Radish (7.6) and Cabbage (56.24) respectively, whereas maximum concentration of Pb, Ni and Zn was observed in the edible parts of Mustard plant (95.4, 58.6, 756.43 respectively). Bio-concentration factor (BCF) value indicated the transfer level of metal from soil to crop;indicated high transfer value of Cd in Radish followed by cabbage and spinach. Considerably high BCF value was observed in the Mustard (8.13), Cabbage (4.18) and radish (3.07) for Zn contamination. Estimated daily intake (EDI) and Hazard quotient (HQ) or Non-carcinogenic health risk was calculated using the USEPA method. The result revealed that the metal intake and associated health risk were considerably high in the children population in comparison to the adult population. 展开更多
关键词 Heavy Metal Bio-Concentration Factor estimated daily intake Health Risk HAZARD QUOTIENT
下载PDF
Residual levels and health risk assessment of trace metals in Chinese resident diet
7
作者 Yubing Dai Shuai Sun +3 位作者 Rong Cao Haijun Zhang Jiping Chen Ningbo Geng 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2024年第2期451-459,共9页
Large-scale metal contamination across the food web is an intractable problem due to increasing pollutant emissions,atmospheric transport,and dry and wet deposition of elements.The present study focus on several trace... Large-scale metal contamination across the food web is an intractable problem due to increasing pollutant emissions,atmospheric transport,and dry and wet deposition of elements.The present study focus on several trace metals that are rarely studied but have special toxicity,including tin(Sn),antimony(Sb),gold(Au),hafnium(Hf),palladium(Pd),platinum(Pt),ruthenium(Ru),tellurium(Te)and iridium(Ir).We investigated trace metals residues and distribution characteristics,and further evaluated the potential health risks from major daily food intakes in 33 cities in China.Sn,Sb,Ir,Hf,and Au were frequently detected in food samples with the concentrations ranged from ND(not detected)to 24.78μg/kg ww(wet weight).Eggs exhibited the highest residual level of all detected metals(13.70±14.70μg/kg ww in sum),while the lowest concentrations were observed in vegetables(0.53±0.17μg/kg ww in sum).Sn accounting for more than 50%of the total trace metals concentration in both terrestrial and aquatic animal origin foods.In terrestrial plant origin foods,Sn and Ir were the most abundant elements.Hf and Au were the most abundant elements in egg samples.In addition,Sb and Ir showed a clear trophic dilution effect in terrestrial environments,while in aquatic ecosystems,Sn,Hf,and Au exhibited obvious trophic amplification effects.The calculated average estimated daily intake(EDI)via food consumption in five regions of China was 0.09μg/(kg·day),implying the health risk of aforementioned elements was acceptable. 展开更多
关键词 Trace metals Accumulation characteristics Dietary exposure estimated daily intake(EDI)
原文传递
Characteristics and health risks of population exposure to phthalates via the use of face towels 被引量:1
8
作者 Wenhui Zhang Na Zheng +7 位作者 Sujing Wang Siyu Sun Qirui An Xiaoqian Li Zimeng Li Yining Ji Yunyang Li Jiamin Pan 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2023年第8期1-13,共13页
The production of face towels is growing at an annual rate of about 4%in China,reaching 1.13 million tons by 2021.Phthalates(PAEs)are widely used in textiles,and face towels,as an important household textile,may expos... The production of face towels is growing at an annual rate of about 4%in China,reaching 1.13 million tons by 2021.Phthalates(PAEs)are widely used in textiles,and face towels,as an important household textile,may expose people to PAEs via the skin,further leading to health risks.We collected new face towels and analyzed the distribution characterization of PAEs in them.The changes of PAEs were explored in a face towel use experiment and a simulated laundry experiment.Based on the use of face towels by 24 volunteers,we calculated the estimated daily intake(EDI)and comprehensively assessed the hazard quotient(HQ),hazard index(HI),and dermal cancer risk(DCR)of PAEs exposure in the population.PAEs were present in new face towels at total concentrations of<MDL–2388 ng/g,with a median of 173.2 ng/g,which was a lower contamination level compared with other textiles.PAE contents in used face towels were significantly higher than in new face towels.The concentrations of PAEs in coral velvet were significantly higher than those in cotton.Water washing removed some PAEs,while detergent washing increased the PAE content on face towels.Gender,weight,use time,and material were the main factors affecting EDI.The HQ and HIwere less than 1,which proved PAEs had no significant non-carcinogenic health risks.Among the five target PAEs studied,DEHPwas the only carcinogenic PAE andmay cause potential health risks after long-term exposure.Therefore,we should pay more attention to DEHP. 展开更多
关键词 Face towels PHTHALATES Dermal exposure estimated daily intake Risk assessment
原文传递
Differentiated emission control strategy based on comprehensive evaluation of multi-media pollution:Case of mercury emission control
9
作者 Dongwei Lv Qingru Wu +4 位作者 Daiwei Ouyang Minneng Wen Gehui Zhang Shuxiao Wang Lei Duan 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2023年第1期222-234,共13页
In order to comprehensively evaluate the environmental impact of multi-media mercury pollution under differentiated emission control strategies in China,a literature review and case studies were carried out.Increased ... In order to comprehensively evaluate the environmental impact of multi-media mercury pollution under differentiated emission control strategies in China,a literature review and case studies were carried out.Increased human exposure to methylmercury was assessed through the dietary intake of residents in areas surrounding a typical coal-fired power plant and a zinc(Zn)smelter,located either on acid soil with paddy growth in southern China,or on alkaline soil with wheat growth in northern China.Combined with knowledge on speciated mercury in flue gas and the fate of mercury in the wastewater or solid waste of the typical emitters applying different air pollution control devices,a simplified model was developed by estimating the incremental daily intake of methylmercury from both local and global pollution.Results indicated that air pollution control for coal-fired power plants and Zn smelters can greatly reduce health risks from mercury pollution,mainly through a reduction in global methylmercury exposure,but could unfortunately induce local methylmercury exposure by transferring more mercury from flue gas to wastewater or solid waste,then contaminating surrounding soil,and thus increasing dietary intake via crops.Therefore,tightening air emission control is conducive to reducing the comprehensive health risk,while the environmental equity between local and global pollution control should be fully considered.Rice in the south tends to have higher bioconcentration factors than wheat in the north,implying the great importance of strengthening local pollution control in the south,especially for Zn smelters with higher contribution to local pollution. 展开更多
关键词 Mercury emission METHYLMERCURY Heavy metal Bioconcentration factor estimated daily intake Health risk assessment
原文传递
从全球疾病负担看中国DRIs:挑战、证据与思考 被引量:3
10
作者 陈晓凡 李幼平 喻佳洁 《中国循证医学杂志》 CSCD 2013年第10期1162-1171,共10页
目的系统分析目前我国膳食营养素参考摄入量(dietary reference intakes,DRIs)制定的现况及我国与全球DRIs制定的异同,为规范我国DRIs的制定提供合理的参考建议。方法计算机检索PubMed、ISI Web of Knowledge、he Cochrane Library、CBM... 目的系统分析目前我国膳食营养素参考摄入量(dietary reference intakes,DRIs)制定的现况及我国与全球DRIs制定的异同,为规范我国DRIs的制定提供合理的参考建议。方法计算机检索PubMed、ISI Web of Knowledge、he Cochrane Library、CBM、WanFang Data、CNKI、VIP等数据库,检索时限均为建库至2013年5月31日。按照纳入与排除标准选择文献和提取数据,采用描述性分析方法系统评价文献的基本信息、不同营养素DRIs的制定及不同年龄段的分布情况。结果初检获得文献588篇,最终纳入42篇,包括14篇指南、12篇系统评价及16篇原始研究文献。结果显示,WHO指南及全球系统评价研究主要关注的营养素是铁及脂溶性维生素(维生素A、D);我国除关注铁及维生素A外,还关注蛋白质、钙、锌、硒。纳入指南关注的人群主要是3~18岁及孕妇,而系统评价除关注此两类人群外,还关注>18岁的成年人。我国对各类人群均有研究,但主要关注18~45岁成年人和6~12岁学龄儿童。纳入的16个原始研究中,4个关注男性,2个关注女性。结论我国DRIs的制定及研究目前尚处于急需更新补充的状态。作为最大的发展中国家,我国的疾病负担、消费水平、膳食模式、膳食营养素的提供内容及保障水平均有别于发达国家和其他发展中国家。制定我国DRIs时宜在循证评价全球现有DRIs的基础上,借鉴当前可得的最佳DRIs标准、方法和证据,并结合我国实际国情、疾病负担及专家意见,循证制定既能满足我国人民健康需要又适合我国国情的DRIs。 展开更多
关键词 膳食营养素参考摄入量 推荐日摄入量 平均需要量 推荐需要量 适宜摄入量 可耐受最高摄入量
原文传递
Heavy Metal Contamination in Soil and Soybean near the Dabaoshan Mine, South China 被引量:24
11
作者 ZHUANG Ping LI Zhi-An +2 位作者 ZOU Bi XIA Han-Ping WANG Gang 《Pedosphere》 SCIE CAS CSCD 2013年第3期298-304,共7页
Concentrations of Pb, Cd, Cu, Zn, Cr and Ni in soybean (Glycine max L.) grown near the Dabaoshan Mine were investigated, and their potential risk to the health of inhabitants was estimated. In the Fandong (FD) and Zho... Concentrations of Pb, Cd, Cu, Zn, Cr and Ni in soybean (Glycine max L.) grown near the Dabaoshan Mine were investigated, and their potential risk to the health of inhabitants was estimated. In the Fandong (FD) and Zhongxin (ZX) villages, which are near the Dabaoshan mineral deposit, concentrations of Pb (0.34 mg kg^(-1) for FD), Cd (0.23 mg kg^(-1) for ZX) and Cr (1.14 and 1.75 mg kg^(-1) for FD and ZX, respectively) in the seeds of soybean exceeded the tolerance limit set by Chinese standards. The estimated daily intakes (EDIs) from consumption of soybean seeds for FD inhabitants were 0.570, 0.170, 38.550, 142.400, 1.910 and 14.530 μg d^(-1) kg^(-1) boby weight for Pb, Cd, Cu, Zn, Cr and Ni, respectively. Our results indicate that soybeans grown in the vicinity of the Dabaoshan Mine accumulate some metals, and the seeds pose a potential health risk to the local inhabitants. 展开更多
关键词 ACCUMULATION CADMIUM estimated daily intake health risks target hazard quotient
原文传递
A review of sources,fate,levels,toxicity,exposure and transformations of organophosphorus flame-retardants and plasticizers in the environment 被引量:1
12
作者 Tlou B.Chokwe Ovokeroye A.Abafe +2 位作者 Senzy P.Mbelu Jonathan O.Okonkwo Linda L.Sibali 《Emerging Contaminants》 2020年第1期345-366,共22页
Organophosphate esters(OPEs)are esters of phosphoric acid that are increasingly used as plasticizers and by the flame-retardants industries as replacement for the regulated polybrominated diphenyl ethers.The most comm... Organophosphate esters(OPEs)are esters of phosphoric acid that are increasingly used as plasticizers and by the flame-retardants industries as replacement for the regulated polybrominated diphenyl ethers.The most commonly classes of these pollutants are the chlorinated-and non-chlorinated-OPEs.The extent and magnitude of OPEs occurrence in the environment,combined with striking structural similarities to toxic organophosphorus pesticides has led to public concern over risk posed by these compounds.Using peer-reviewed literature published from the last decade(2010e2019),concentrations and distributions of commonly studied OPEs based on their occurrence in different matrices around the globe were evaluated and reported.These pollutants have a wide range of physicochemical properties such as their water solubility’s,logKow value,vapour pressure and bioconcentration factors(BCFs)which are very important factors in assessing their behaviour in different environmental matrices.Despite progress in research on OPEs over the years,full understanding of the environmental behaviour and fate of these pollutants are still elusive.Sources by which these pollutants enter the environment in conjunction with their concentrations together with their toxicities,estimated daily intakes,transformation products and fates are reviewed.It is envisaged that this review will heighten the importance of identifying emerging issues,data gaps and provide a future research agenda for OPEs. 展开更多
关键词 Organophosphorus compounds CONCENTRATIONS SOURCES FATE TOXICITY estimated daily intakes
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部