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Chen Y, Van Deventer D, Nianogo R, Vinceti M, Kang W, Cockburn M, Federman N, Heck JE. Maternal residential exposure to solvents from industrial sources during pregnancy and childhood cancer risk in California. Int J Hyg Environ Health 2024; 259:114388. [PMID: 38704950 PMCID: PMC11127780 DOI: 10.1016/j.ijheh.2024.114388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 04/09/2024] [Accepted: 04/23/2024] [Indexed: 05/07/2024]
Abstract
BACKGROUND Maternal solvent exposure has been suspected to increase offspring cancer risk. The study aimed to evaluate the associations between maternal residential exposure to solvents from industrial pollution during pregnancy and childhood cancer. METHODS The present study included 15,744 cancer cases (aged 0-19 years at diagnosis) identified from California Cancer Registry and 283,141 controls randomly selected from California Birth Registry (20:1 frequency-matched by birth year: 1998-2016). We examined industrial releases of tetrachloroethylene and 1,1,1-trichloroethane within 3 km of the birth address, while we used a 5 km buffer for carbon disulfide. We calculated the total exposure from all linked Toxic Release Inventory sites during each index pregnancy and assigned "ever/never" and "high/low exposed/unexposed" exposure, using median values. We performed quadratic decay models to estimate cancer risks associated with maternal solvent exposure in pregnancy. RESULTS 1,1,1-Trichloroethane was associated with rhabdomyosarcoma (adjusted Odds Ratio (aOR): 1.96; 95% Confidence Interval (CI): 1.16, 3.32) in the "ever exposed" group. Ever exposure to carbon disulfide was associated with increased risks of medulloblastoma (OR = 1.85, 95% CI 1.01, 3.40) and ependymoma (OR = 1.63, 95% CI 0.97, 2.74). CONCLUSIONS Overall, our findings suggested maternal residential exposure to solvents from industrial sources might be associated with elevated childhood cancer risks.
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Affiliation(s)
- Yixin Chen
- Department of Epidemiology, Fielding School of Public Health, University of California, UCLA, Los Angeles, CA, 90095-1772, USA
| | - Darcy Van Deventer
- Department of Epidemiology, Fielding School of Public Health, University of California, UCLA, Los Angeles, CA, 90095-1772, USA
| | - Roch Nianogo
- Department of Epidemiology, Fielding School of Public Health, University of California, UCLA, Los Angeles, CA, 90095-1772, USA; California Center for Population Research, University of California, UCLA, Los Angeles, CA, USA
| | - Marco Vinceti
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Section of Public Health, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy; Department of Epidemiology, School of Public Health, Boston University, Boston, MA, USA
| | - Wei Kang
- Department of Geography and the Environment, University of North Texas, Denton, TX, 76203-5017, USA
| | - Myles Cockburn
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Noah Federman
- Department of Pediatrics, Geffen School of Medicine, University of California, UCLA, Los Angeles, CA, USA
| | - Julia E Heck
- Department of Epidemiology, Fielding School of Public Health, University of California, UCLA, Los Angeles, CA, 90095-1772, USA; College of Health and Public Service, University of North Texas, Denton, TX, 76203-5017, USA.
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Zheng X, Zhuang Y, Liang D, Wu N, Wei T, Kang A, Zeng X, Dai C, Guo X. Dichloromethane-Induced Poisoning from Acrylic Paint Cleaner - Shenzhen City, Guangdong Province, China, 2023. China CDC Wkly 2023; 5:966-969. [PMID: 38025514 PMCID: PMC10652081 DOI: 10.46234/ccdcw2023.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
What is already known about this topic? Dichloromethane (DCM) is a colorless and transparent organic solvent that commonly causes poisoning during occupational contact. What is added by this report? Unknown to teachers and students, they were utilizing an acrylic paint cleaner that contained DCM. At the time of the poisoning incident, the art room was occupied beyond its capacity with inadequate local ventilation. The primary cause of the incident was determined to be the students' inhalation of DCM during the cleaning process. What are the implications for public health practice? The unclear composition of environmental cleaning products available for purchase online presents a major obstacle for consumers trying to assess their toxicity. It is imperative that robust regulatory measures and proactive public education campaigns are implemented to mitigate instances of poisoning.
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Affiliation(s)
- Xiaojun Zheng
- Shenzhen Field Epidemiology Training Program (SZFETP), Shenzhen City, Guangdong Province, China
- Shenzhen Futian District Center for Disease Control and Prevention, Shenzhen City, Guangdong Province, China
| | - Yuan Zhuang
- Shenzhen Field Epidemiology Training Program (SZFETP), Shenzhen City, Guangdong Province, China
- Shenzhen Baoan District Center for Public Health Service, Shenzhen City, Guangdong Province, China
| | - Dongmei Liang
- Shenzhen Field Epidemiology Training Program (SZFETP), Shenzhen City, Guangdong Province, China
- Shenzhen Baoan District Center for Public Health Service, Shenzhen City, Guangdong Province, China
| | - Nan Wu
- Shenzhen Nanshan District Center for Disease Control and Prevention, Shenzhen City, Guangdong Province, China
| | - Tao Wei
- Shenzhen Nanshan District Center for Disease Control and Prevention, Shenzhen City, Guangdong Province, China
| | - Anhua Kang
- Shenzhen Nanshan District Center for Disease Control and Prevention, Shenzhen City, Guangdong Province, China
| | - Xiandong Zeng
- Shenzhen Nanshan District Center for Disease Control and Prevention, Shenzhen City, Guangdong Province, China
| | - Chuanwen Dai
- Shenzhen Field Epidemiology Training Program (SZFETP), Shenzhen City, Guangdong Province, China
- Shenzhen Nanshan District Center for Disease Control and Prevention, Shenzhen City, Guangdong Province, China
| | - Xiang Guo
- Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen City, Guangdong Province, China
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Wang Y, Song H, Li L, Ma J, Yu F. Generation characteristics and spreading risk of VOCs released from a biological fermentation pharmaceutical factory. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2023; 25:507-518. [PMID: 36606575 DOI: 10.1039/d2em00378c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Pharmaceutical factories produce a large amount of volatile organic compounds (VOCs), which may pose a potential health threat to the environment, workers, and nearby residents. Sampling points were set up in the tylosin biological fermentation workshop (FW) and sewage treatment station (STS) of a pharmaceutical factory in a central city in northern China to collect VOCs and study their generation characteristics and diffusion. The results indicated that with the increase in fermentation time, VOC production decreased gradually, and the decline was rapid. The main VOCs produced by the FW are oxygen-containing organics and nitrogen-containing organics including 1-heptyladehyde (8.86 × 102 mg m-3), 1-methyl-2-pyrrolidone (6.36 × 102 mg m-3) and benzene (5.85 × 102 mg m-3). The STS mainly produces nitrogen-containing organics and oxygen-containing organics including 1-methyl-2-pyrrolidone (3.38 × 103 mg m-3), diethyl amine (9.60 × 102 mg m-3) and methyl ethyl ketone (2.98 × 102 mg m-3). VOCs produced by biopharmaceutical factories can diffuse for a long distance in the atmosphere. The highest concentration of chlorinated organic compounds can spread to 11.43 kilometers in the horizontal direction and 3 kilometers in the vertical direction. Acetaldehyde, butyraldehyde, diethylamine, butyl acetate and methyl ethyl ketone are odorous gases detected in the FW and STS, respectively. Benzene, carbon tetrachloride and acetaldehyde are the main carcinogenic VOCs produced in the fermentation process of tylosin. The research elucidated production characteristics, diffusion and health risks of VOCs in the FW, which provided a reference for the control of VOCs.
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Affiliation(s)
- Yanjie Wang
- College of Public Health, Zhengzhou University, Zhengzhou, 450000, P. R. China
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R China
| | - Huiling Song
- College of Public Health, Zhengzhou University, Zhengzhou, 450000, P. R. China
- Department of Medical, Xi'an Gem Flower Changqing Hospitals, Xi'an, 710000, P. R. China
| | - Lin Li
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R China
| | - Jiawei Ma
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R China
| | - Fangfang Yu
- College of Public Health, Zhengzhou University, Zhengzhou, 450000, P. R. China
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Buser JM, Lake K, Ginier E. Environmental Risk Factors for Childhood Cancer in an Era of Global Climate Change: A Scoping Review. J Pediatr Health Care 2022; 36:46-56. [PMID: 34134914 DOI: 10.1016/j.pedhc.2021.05.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/19/2021] [Accepted: 05/13/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Contemporary research about environmental risk factors in an era of global climate change to inform childhood cancer prevention efforts is disjointed. Planetary pediatric providers need to establish a better understanding of how the postnatal environment influences childhood cancer. Authors conducted a scoping review of recent scientific literature with the aim of understanding the environmental risk factors for childhood cancer. METHOD Ovid Medline, CINAHL, and Scopus databases were searched with results limited to the English language with publication years 2010-2021. Two independent reviewers screened 771 abstracts and excluded 659 abstracts and 65 full-text articles on the basis of predefinedcriteria. RESULTS The scoping review identified 47 studies about environmental risk factors for childhood cancer with mixed results and limited consensus in four main categories, including air pollution, chemical exposures, radiation, and residential location. DISCUSSION Research by collaborative international groups of planetary health researchers about environmental risk factors is needed to inform global health policy for childhood cancer prevention efforts.
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Zeng NN, Han C, Cui GH. New double layered Co(II)–organic framework for sensing of dichloromethane and Fe3+ ions. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108859] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Hall C, Hansen J, Olsen J, He D, von Ehrenstein OS, Ritz B, Heck JE. Parental occupation and childhood germ cell tumors: a case-control study in Denmark, 1968-2016. Cancer Causes Control 2021; 32:827-836. [PMID: 33907877 PMCID: PMC8236473 DOI: 10.1007/s10552-021-01434-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 04/13/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE To examine associations between parental occupation and childhood germ cell tumors (GCTs) in offspring while distinguishing by common histologic subtype (i.e., yolk sac tumor and teratoma). METHODS This population-based case-control study included childhood GCT cases in Denmark diagnosed 1968-2015 (< 16 years old at diagnosis) and sex and birth year-matched controls. Demographic information and parental employment histories were obtained from Danish registries. Parental occupation was assessed by industry; job-exposure matrices were used to examine specific occupational exposures (i.e., potentially carcinogenic organic solvents and social contact). Conditional multivariable logistic regression models were used to estimate odds ratios (OR) and 95% confidence intervals (CIs). RESULTS Overall, 178 childhood GCT cases (50 yolk sac tumors; 65 teratomas) and 4,355 controls were included for analysis. Maternal employment in education during pregnancy was associated with offspring GCTs (OR 2.45, 95% CI 1.23-4.90), especially yolk sac tumors (OR 5.27, 95% CI 1.94-14.28). High levels of both maternal and paternal occupational social contact were also associated with offspring yolk sac tumors across all exposure periods (ORs 2.30-4.63). No signals were observed for paternal occupational solvent exposure, while imprecise associations were estimated for maternal exposure (e.g., dichloromethane exposure during pregnancy, OR 1.51, 95% CI 0.77-2.95). CONCLUSION Our findings suggest that parental occupation is associated with offspring GCTs, with most consistent evidence supporting an association between maternal employment in education or other high social contact jobs and offspring yolk sac tumors.
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Affiliation(s)
- Clinton Hall
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
| | - Johnni Hansen
- Danish Cancer Society Research Center, Danish Cancer Society, Copenhagen, Denmark
| | - Jørn Olsen
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Di He
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
| | - Ondine S von Ehrenstein
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Community Health Sciences, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
| | - Beate Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA
| | - Julia E Heck
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA.
- College of Health and Public Service, University of North Texas, Denton, TX, USA.
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Wang Y, Li L, Qiu Z, Yang K, Han Y, Chai F, Li P, Wang Y. Trace volatile compounds in the air of domestic waste landfill site: Identification, olfactory effect and cancer risk. CHEMOSPHERE 2021; 272:129582. [PMID: 33476794 DOI: 10.1016/j.chemosphere.2021.129582] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/30/2020] [Accepted: 01/03/2021] [Indexed: 06/12/2023]
Abstract
Landfill sites are regarded as sources of volatile compounds (VOCs) and odors emitted to the atmosphere. Surface emissions of VOCs and odors were investigated in a rural domestic waste landfill site located in southwest China. A total of 76 chemical compounds belonging to 3 chemical families were identified and quantified. The total number of VOCs (TVOC) detected ranged from 18.1 to 806.3 mg/m3, while odorous gases and greenhouse gases ranged from 0.4 to 21.2 and 0-100.5 mg/m3, respectively. High emissions were found in the air surrounding the leachate storage pool (LSP) and dumping area (DPA). The dominant species of VOCs were hexaldehyde, m-xylene, propylene oxide, acetophenone, and 2-butanone. The traceability analysis showed that the odors and VOCs diffused to the downwind boundary mainly came from the DPA and LSP. According to the olfactory effect analysis and cancer risk assessment, the main odor-causing gaseous pollutants were hydrogen sulfide, propionic acid, styrene, and 2-pentanone, while benzene, trichlorethylene, and 1,3-butadiene were the dominant carcinogens. This study provides new insights into the emission characteristics, olfactory effects, and cancer risks of VOCs and odors emitted from rural domestic solid waste landfill sites.
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Affiliation(s)
- Ying Wang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing, 101408, PR China.
| | - Lin Li
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing, 101408, PR China.
| | - Zhongping Qiu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 611756, PR China.
| | - Kaixiong Yang
- Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237, PR China.
| | - Yunping Han
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing, 101408, PR China.
| | - Fengguang Chai
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing, 101408, PR China.
| | - Pengyu Li
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing, 101408, PR China.
| | - Yanjie Wang
- School of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
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Qu K, Wang F, Du Z, Wang S, Zhang Z, Shen Y. A novel and sensitive method for determination of amisulpride in human plasma by two-dimensional liquid chromatography. Biomed Chromatogr 2021; 35:e5149. [PMID: 33928659 DOI: 10.1002/bmc.5149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 02/09/2021] [Accepted: 04/21/2021] [Indexed: 11/06/2022]
Abstract
A novel and sensitive heart-cutting two-dimensional liquid chromatography with ultraviolet detection method (2D-LC-UV) was developed and validated for determination of amisulpride in human plasma. The 2D-LC system consists of a first dimensional (1 D) LC column and a middle transfer column as well as a second-dimensional (2 D) LC column. After simple protein precipitation, the sample was directly injected into the introduction valve of the 2D-LC system. The 1 D column, playing a role of primary separation and preconcentration for complex plasma matrices, transferred the targets to the intermediate column. Following capture of targets on the middle column online, the analytes were transferred to the 2 D separation column by a six-port valve. The 2 D column, avoiding interference from the plasma matrix, completed further separation and quantification. An assistant pump was optimized for primary enrichment as well as final elution in the heart-cutting mode. The analytical time of amisulpride was 7.401 min. The accuracy was between 0.48 and 8.49%, while the intra- and inter-day precisions ranged from 0.9 to 3.1% and from 1.7% to 3.3%, respectively. The linear range of amisulpride was 48.15-2,407.59 ng/ml, while the extraction recovery was 98.7-101.3%. The strategy established in the study, which was successfully applied to therapeutic drug monitoring of amisulpride for routine clinical detection, displays high sensitivity, good repeatability, convenience and low cost.
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Affiliation(s)
- Kankan Qu
- Department of Pharmacy, The Affiliated Wuxi Mental Health Center with Nanjing Medical University, Wuxi Tongren Rehabilitation Hospital, Wuxi, Jiangsu Province, China
| | - Feng Wang
- Department of Pharmacy, the Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Zhiqiang Du
- Department of Pharmacy, The Affiliated Wuxi Mental Health Center with Nanjing Medical University, Wuxi Tongren Rehabilitation Hospital, Wuxi, Jiangsu Province, China
| | - Shushan Wang
- Department of Pharmacy, The Affiliated Wuxi Mental Health Center with Nanjing Medical University, Wuxi Tongren Rehabilitation Hospital, Wuxi, Jiangsu Province, China
| | - Zhongdong Zhang
- Department of Pharmacy, The Affiliated Wuxi Mental Health Center with Nanjing Medical University, Wuxi Tongren Rehabilitation Hospital, Wuxi, Jiangsu Province, China
| | - Yuan Shen
- Department of Pharmacy, The Affiliated Wuxi Mental Health Center with Nanjing Medical University, Wuxi Tongren Rehabilitation Hospital, Wuxi, Jiangsu Province, China
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Dekant W, Jean P, Arts J. Evaluation of the carcinogenicity of dichloromethane in rats, mice, hamsters and humans. Regul Toxicol Pharmacol 2021; 120:104858. [PMID: 33387565 DOI: 10.1016/j.yrtph.2020.104858] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 12/23/2020] [Accepted: 12/24/2020] [Indexed: 12/26/2022]
Abstract
Dichloromethane (DCM) is a high production volume chemical (>1000 t/a) mainly used as an industrial solvent. Carcinogenicity studies in rats, mice and hamsters have demonstrated a malignant tumor inducing potential of DCM only in the mouse (lung and liver) at 1000-4000 ppm whereas human data do not support a conclusion of cancer risk. Based on this, DCM has been classified as a cat. 2 carcinogen. Dose-dependent toxicokinetics of DCM suggest that DCM is a threshold carcinogen in mice, initiating carcinogenicity via the low affinity/high capacity GSTT1 pathway; a biotransformation pathway that becomes relevant only at high exposure concentrations. Rats and hamsters have very low activities of this DCM-metabolizing GST and humans have even lower activities of this enzyme. Based on the induction of specific tumors selectively in the mouse, the dose- and species-specific toxicokinetics in this species, and the absence of a malignant tumor response by DCM in rats and hamsters having a closer relationship to DCM toxicokinetics in humans and thus being a more relevant animal model, the current classification of DCM as human carcinogen cat. 2 remains appropriate.
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Affiliation(s)
- Wolfgang Dekant
- Department of Pharmacology and Toxicology, Universität Würzburg, Versbacherstr. 9, 97078 Würzburg, Germany
| | - Paul Jean
- Olin Corporation, 2205 Ridgewood Dr., Midland, MI, 48642 USA
| | - Josje Arts
- Nouryon Industrial Chemicals, PO Box 60192, 6800 JD Arnhem, the Netherlands.
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Hvidtfeldt UA, Erdmann F, Urhøj SK, Brandt J, Geels C, Ketzel M, Frohn LM, Christensen JH, Sørensen M, Raaschou-Nielsen O. Air pollution exposure at the residence and risk of childhood cancers in Denmark: A nationwide register-based case-control study. EClinicalMedicine 2020; 28:100569. [PMID: 33294803 PMCID: PMC7700996 DOI: 10.1016/j.eclinm.2020.100569] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/14/2020] [Accepted: 09/14/2020] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND The etiology of childhood cancer is poorly understood. The role of environmental factors, including air pollution (AP) exposure, has been addressed previously, but results so far have been inconclusive. In this study, we investigate the association between long-term AP exposures in relation to childhood cancer subtypes in Denmark (1981-2013). METHODS We conducted a nationwide register-based case-control study. We identified 7745 incident cases of childhood cancers (<20 years) in the Danish Cancer Registry. Four randomly selected (cancer-free) controls were matched to each case according to sex and date of birth. We modelled concentrations of nitrogen dioxide (NO2), fine particles (PM2·5), and black carbon (BC) at all addresses and calculated a time-weighted average from birth to index-date with a state-of-the-art multiscale AP modelling system. We analyzed the risk of childhood cancer in conditional logistic regression models adjusted for socio-demographic variables obtained from registers at the individual and neighborhood level. FINDINGS The main analyses included 5045 cases and 18,179 controls. For all cancers combined, we observed odds ratios (ORs) and 95% confidence intervals (95% CI) of 0·97 (0·94, 1·01) per 10 µg/m3 NO2, 0·89 (0·82, 0·98) per 5 µg/m3 PM2·5, and 0·94 (0·88, 1·01) per 1 µg/m3 BC, respectively. Most notably, we observed a higher risk of Non-Hodgkin Lymphoma (NHL) with higher childhood AP exposure with ORs and 95% CIs of 1·21 (0·94, 1·55) per 10 µg/m3 NO2, 2·11 (1·10, 4·01) per 5 µg/m3 PM2·5, and 1·68 (1·06, 2·66) per 1 µg/m3 BC, respectively. We observed indications of increased risks for other types of childhood cancer, however, with very wide CIs including 1. INTERPRETATIONS The findings of this nation-wide study propose a role of AP in the development of childhood NHL, but more large-scale studies are needed. FUNDING NordForsk Project #75007.
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Affiliation(s)
- Ulla Arthur Hvidtfeldt
- Danish Cancer Society Research Center, Strandboulevarden 49, Copenhagen DK-2100, Denmark
- Corresponding author.
| | - Friederike Erdmann
- German Childhood Cancer Registry, Institute for Medical Biostatistics, Epidemiology and Informatics (IMBEI), Johannes Gutenberg University Mainz, Obere Zahlbacher Str. 69, Mainz 55131, Germany
| | - Stine Kjær Urhøj
- Section of Epidemiology, Department of Public Health, University of Copenhagen, Oster Farimagsgade 5, P.O. Box 2099, Copenhagen K DK-1014, Denmark
| | - Jørgen Brandt
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, P. O. Box 358, Roskilde 4000, Denmark
| | - Camilla Geels
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, P. O. Box 358, Roskilde 4000, Denmark
| | - Mattias Ketzel
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, P. O. Box 358, Roskilde 4000, Denmark
- Global Centre for Clean Air Research (GCARE), Department of Civil and Environmental Engineering, University of Surrey, Guildford, United Kingdom
| | - Lise M. Frohn
- German Childhood Cancer Registry, Institute for Medical Biostatistics, Epidemiology and Informatics (IMBEI), Johannes Gutenberg University Mainz, Obere Zahlbacher Str. 69, Mainz 55131, Germany
| | - Jesper Heile Christensen
- German Childhood Cancer Registry, Institute for Medical Biostatistics, Epidemiology and Informatics (IMBEI), Johannes Gutenberg University Mainz, Obere Zahlbacher Str. 69, Mainz 55131, Germany
| | - Mette Sørensen
- Danish Cancer Society Research Center, Strandboulevarden 49, Copenhagen DK-2100, Denmark
- Department of Natural Science and Environment, Roskilde University, Universitetsvej 1, P.O. Box 260, Roskilde 4000, Denmark
| | - Ole Raaschou-Nielsen
- Danish Cancer Society Research Center, Strandboulevarden 49, Copenhagen DK-2100, Denmark
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, P. O. Box 358, Roskilde 4000, Denmark
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Valbuena-Garcia AM, Rodriguez-Villamizar LA, Uribe-Pérez CJ, Moreno-Corzo FE, Ortiz-Martinez RG. A spatial analysis of childhood cancer and industrial air pollution in a metropolitan area of Colombia. Pediatr Blood Cancer 2020; 67:e28353. [PMID: 32452157 DOI: 10.1002/pbc.28353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 03/13/2020] [Accepted: 04/06/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND Air pollutants are considered carcinogenic to humans. In some European countries, an association between industrial air pollution and childhood cancer has been established. This relationship has not been addressed in Latin America, despite the spatial variability of air pollutants that may limit the extrapolation of the results to other geographical areas. OBJECTIVE To conduct a spatial analysis of the relationship between childhood cancer and proximity to industrial sources of air pollution in a metropolitan area of Colombia. METHODS Incident cases of childhood cancers were obtained from the Population-based Cancer Registry of the Metropolitan Area of Bucaramanga during 2000-2015. Local and focused cluster tests were used for the detection of spatial clusters, and the Poisson multivariable model was used to evaluate the combined effects of spatial variables. RESULTS The Kulldorff's focused test found a significant spatial cluster (P < 0.001) around one industrial agglomerate and the multivariable model results suggests that the distance effect is modified by the directional effect of the wind. CONCLUSION A spatial cluster of incident cases of childhood cancer occurred in the municipality of Bucaramanga, Colombia. Our finding supports the hypothesis that childhood cancer might be related with industrial air pollution exposure in a Latin American city.
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Affiliation(s)
| | | | - Claudia Janeth Uribe-Pérez
- Population Registry of Cancer of the Metropolitan Area of Bucaramanga, Universidad Autónoma de Bucaramanga, Bucaramanga, Colombia
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Park AS, Ritz B, Yu F, Cockburn M, Heck JE. Prenatal pesticide exposure and childhood leukemia - A California statewide case-control study. Int J Hyg Environ Health 2020; 226:113486. [PMID: 32087503 DOI: 10.1016/j.ijheh.2020.113486] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 01/17/2020] [Accepted: 02/10/2020] [Indexed: 11/15/2022]
Abstract
BACKGROUND A number of epidemiologic studies with a variety of exposure assessment approaches have implicated pesticides as risk factors for childhood cancers. Here we explore the association of pesticide exposure in pregnancy and early childhood with childhood acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML) utilizing land use and pesticide use data in a sophisticated GIS tool. METHODS We identified cancer cases less than 6 years of age from the California Cancer Registry and cancer-free controls from birth certificates. Analyses were restricted to those living in rural areas and born 1998-2011, resulting in 162 cases of childhood leukemia and 9,805 controls. Possible carcinogens were selected from the Environmental Protection Agency's classifications and pesticide use was collected from the California Department of Pesticide Regulation's (CDPR) Pesticide Use Reporting (PUR) system and linked to land-use surveys. Exposures for subjects were assessed using a 4000m buffer around the geocoded residential addresses at birth. Unconditional logistic and hierarchical regression models were used to assess individual pesticide and pesticide class associations. RESULTS We observed elevated risks for ALL with exposure to any carcinogenic pesticide (adjusted Odds Ratio (aOR): 2.83, 95% CI: 1.67-4.82), diuron (Single-pesticide model, adjusted (OR): 2.38, 95% CI: 1.57-3.60), phosmet (OR: 2.10, 95% CI: 1.46-3.02), kresoxim-methyl (OR: 1.77, 95% CI: 1.14-2.75), and propanil (OR: 2.58, 95% CI: 1.44-4.63). Analyses based on chemical classes showed elevated risks for the group of 2,6-dinitroanilines (OR: 2.50, 95% CI: 1.56-3.99), anilides (OR: 2.16, 95% CI: 1.38-3.36), and ureas (OR: 2.18, 95% CI: 1.42-3.34). CONCLUSION Our findings suggest that in rural areas of California exposure to certain pesticides or pesticide classes during pregnancy due to residential proximity to agricultural applications may increase the risk of childhood ALL and AML. Future studies into the mechanisms of carcinogenicity of these pesticides may be beneficial.
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Affiliation(s)
- Andrew S Park
- Department of Epidemiology, Fielding School of Public Health, University of California, 650 Charles E. Young Dr. S, Box 951772, Los Angeles, CA, 90095-1772, USA
| | - Beate Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California, 650 Charles E. Young Dr. S, Box 951772, Los Angeles, CA, 90095-1772, USA
| | - Fei Yu
- Department of Biostatistics, Fielding School of Public Health, University of California, 650 Charles E. Young Dr. S, Box 951772, Los Angeles, CA, 90095-1772, USA
| | - Myles Cockburn
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 2001, N. Soto Street, Suite 318-A, Los Angeles, CA, USA
| | - Julia E Heck
- Department of Epidemiology, Fielding School of Public Health, University of California, 650 Charles E. Young Dr. S, Box 951772, Los Angeles, CA, 90095-1772, USA; Jonsson Comprehensive Cancer Center, University of California, Box 951781, Los Angeles, CA, 90095-1781, USA.
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KAWAI T, SAKURAI H, IKEDA M. Biological monitoring of occupational exposure to dichloromethane by means of urinalysis for un-metabolized dichloromethane. INDUSTRIAL HEALTH 2020; 58:22-25. [PMID: 30996213 PMCID: PMC6997715 DOI: 10.2486/indhealth.2018-0222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 04/08/2019] [Indexed: 06/09/2023]
Abstract
The objective of the study is to establish exposure-excretion relationship between dichlorometane (DCM) in air (DCM-A) and in urine (DCM-U) in workplace to confirm a previous report. Male workers in a screen-printing plant participated in the study. Time-weighted average DCM-A was measured by diffusive sampling followed by gas-chromatography (GC), and DCM in end-of-shift urine samples was by head-space GC. The data were subjected to regression and other statistical analyses. In practice, 30 sets of DCM-A and DCM-U values were available. The geometric mean DCM-A was 8.4 ppm and that of DCM-U (as observed) was 41.1 µg/l. The correlation coefficients (0.70-0.85) were statistically significant across the correction for urine density. Thus, the analysis for un-metabolized DCM in end-of-shift urine samples is applicable for biological monitoring of occupational exposure to DCM, in support of and in agreement with the previous report. In conclusion, biological monitoring of occupational DCM exposure is possible by use of analysis for un-metabolized DCM in end-of-shift urine.
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Affiliation(s)
- Toshio KAWAI
- Kansai Technical Center for Occupational Medicine,
Japan
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Ni J, Liu Y, Shen C, Chen D, Xin Y, Liu Q. Bioinformatics, bacterial expression and enzyme activity analyses of dichloromethane dehalogenase from Methylobacterium rhodesianum H13. BIOTECHNOL BIOTEC EQ 2020. [DOI: 10.1080/13102818.2020.1818622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- Jianguo Ni
- Department of Environmental Engineering, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, Zhejiang, PR China
- Department of Linpu Environmental Protection, Hangzhou Ecological Environment Bureau of Xiaoshan Branch, Hangzhou, Zhejiang, PR China
| | - Ying Liu
- Department of Environmental Engineering, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, Zhejiang, PR China
| | - Chenjia Shen
- Department of Environmental Engineering, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, Zhejiang, PR China
| | - Dongzhi Chen
- Department of Environmental Engineering, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, PR China
| | - Yueyong Xin
- Department of Environmental Engineering, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, Zhejiang, PR China
| | - Qi Liu
- Department of Environmental Engineering, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, Zhejiang, PR China
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Kim EB, Abdullah, Ameen S, Akhtar MS, Shin HS. Environment-friendly and highly sensitive dichloromethane chemical sensor fabricated with ZnO nanopyramids-modified electrode. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.05.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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García-Pérez J, Gómez-Barroso D, Tamayo-Uria I, Ramis R. Methodological approaches to the study of cancer risk in the vicinity of pollution sources: the experience of a population-based case-control study of childhood cancer. Int J Health Geogr 2019; 18:12. [PMID: 31138300 PMCID: PMC6537179 DOI: 10.1186/s12942-019-0176-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/22/2019] [Indexed: 02/06/2023] Open
Abstract
Background Environmental exposures are related to the risk of some types of cancer, and children are the most vulnerable group of people. This study seeks to present the methodological approaches used in the papers of our group about risk of childhood cancers in the vicinity of pollution sources (industrial and urban sites). A population-based case–control study of incident childhood cancers in Spain and their relationship with residential proximity to industrial and urban areas was designed. Two methodological approaches using mixed multiple unconditional logistic regression models to estimate odds ratios (ORs) and 95% confidence intervals (95% CIs) were developed: (a) “near vs. far” analysis, where possible excess risks of cancers in children living near (“near”) versus those living far (“far”) from industrial and urban areas were assessed; and (b) “risk gradient” analysis, where the risk gradient in the vicinity of industries was assessed. For each one of the two approaches, three strategies of analysis were implemented: “joint”, “stratified”, and “individualized” analysis. Incident cases were obtained from the Spanish Registry of Childhood Cancer (between 1996 and 2011). Results Applying this methodology, associations between proximity (≤ 2 km) to specific industrial and urban zones and risk (OR; 95% CI) of leukemias (1.31; 1.04–1.65 for industrial areas, and 1.28; 1.00–1.53 for urban areas), neuroblastoma (2.12; 1.18–3.83 for both industrial and urban areas), and renal (2.02; 1.16–3.52 for industrial areas) and bone (4.02; 1.73–9.34 for urban areas) tumors have been suggested. Conclusions The two methodological approaches were used as a very useful and flexible tool to analyze the excess risk of childhood cancers in the vicinity of industrial and urban areas, which can be extrapolated and generalized to other cancers and chronic diseases, and adapted to other types of pollution sources.
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Affiliation(s)
- Javier García-Pérez
- Cancer and Environmental Epidemiology Unit, Department of Epidemiology of Chronic Diseases, National Center for Epidemiology, Carlos III Institute of Health, Avda. Monforte de Lemos, 5, 28029, Madrid, Spain. .,Consortium for Biomedical Research in Epidemiology and Public Health (CIBER Epidemiología y Salud Pública - CIBERESP), Madrid, Spain.
| | - Diana Gómez-Barroso
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER Epidemiología y Salud Pública - CIBERESP), Madrid, Spain.,National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain
| | - Ibon Tamayo-Uria
- Division of Immunology and Immunotherapy, Cima Universidad de Navarra and "Instituto de Investigación Sanitaria de Navarra (IdISNA)", Pamplona, Spain
| | - Rebeca Ramis
- Cancer and Environmental Epidemiology Unit, Department of Epidemiology of Chronic Diseases, National Center for Epidemiology, Carlos III Institute of Health, Avda. Monforte de Lemos, 5, 28029, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBER Epidemiología y Salud Pública - CIBERESP), Madrid, Spain
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Filippini T, Hatch EE, Rothman KJ, Heck JE, Park AS, Crippa A, Orsini N, Vinceti M. Association between Outdoor Air Pollution and Childhood Leukemia: A Systematic Review and Dose-Response Meta-Analysis. ENVIRONMENTAL HEALTH PERSPECTIVES 2019; 127:46002. [PMID: 31017485 PMCID: PMC6785230 DOI: 10.1289/ehp4381] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 03/22/2019] [Accepted: 03/26/2019] [Indexed: 05/28/2023]
Abstract
BACKGROUND A causal link between outdoor air pollution and childhood leukemia has been proposed, but some older studies suffer from methodological drawbacks. To the best of our knowledge, no systematic reviews have summarized the most recently published evidence and no analyses have examined the dose-response relation. OBJECTIVE We investigated the extent to which outdoor air pollution, especially as resulting from traffic-related contaminants, affects the risk of childhood leukemia. METHODS We searched all case-control and cohort studies that have investigated the risk of childhood leukemia in relation to exposure either to motorized traffic and related contaminants, based on various traffic-related metrics (number of vehicles in the closest roads, road density, and distance from major roads), or to measured or modeled levels of air contaminants such as benzene, nitrogen dioxide, 1,3-butadiene, and particulate matter. We carried out a meta-analysis of all eligible studies, including nine studies published since the last systematic review and, when possible, we fit a dose-response curve using a restricted cubic spline regression model. RESULTS We found 29 studies eligible to be included in our review. In the dose-response analysis, we found little association between disease risk and traffic indicators near the child's residence for most of the exposure range, with an indication of a possible excess risk only at the highest levels. In contrast, benzene exposure was positively and approximately linearly associated with risk of childhood leukemia, particularly for acute myeloid leukemia, among children under 6 y of age, and when exposure assessment at the time of diagnosis was used. Exposure to nitrogen dioxide showed little association with leukemia risk except at the highest levels. DISCUSSION Overall, the epidemiologic literature appears to support an association between benzene and childhood leukemia risk, with no indication of any threshold effect. A role for other measured and unmeasured pollutants from motorized traffic is also possible. https://doi.org/10.1289/EHP4381.
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Affiliation(s)
- Tommaso Filippini
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Elizabeth E. Hatch
- Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts, USA
| | - Kenneth J. Rothman
- Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts, USA
- RTI Health Solutions, Research Triangle Park, North Carolina, USA
| | - Julia E. Heck
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California, USA
| | - Andrew S. Park
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California, USA
| | - Alessio Crippa
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Nicola Orsini
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Marco Vinceti
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
- Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts, USA
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