Center for Occupational and Environmental Health (COEH)
COEH is housed within the UCLA Fielding School of Public Health in the Department of Environmental Health Sciences, the School of Nursing, and the David Geffen School of Medicine.
one of three centers created by 1978 legislation
which mandated the State of California establish education, research and service centers to protect people from work-related hazards
Community Health Sciences
research, training, and service in an array of disciplines
Environmental Health Sciences
Occupational Nursing
Occupational-Environmental Medicine

Our mission is to address occupational and environmental health issues through advanced research, teaching, training opportunities and service to the Southern California community, achieving this through collaboration with its sister centers and local, state and national affiliates. 


Jan 20, 2018
The strong ties between the Fielding School and the L.A. County Department of Public Health (LACDPH), which date
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Jan 20, 2018

Through the 1960s and 1970s, the Los Angeles basin was notorious as one of the world’s smoggiest regions. Since then, population in the sprawling metropolitan area has roughly doubled,

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Nov 15, 2017

Two years after the largest methane blowout in U.S. history, residents in the Porter Ranch neighborhood of Los Angeles are still in the dark about its long-term effects on their health.

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Upcoming Events


Metabolomics Approach to Spy into Endogenous Responses| Jun Yang, Ph.D.

12:00pm to 1:00pm
UCLA Center for Health Sciences, CHS 43-105
  • Event

Speaker TBA

12:00pm to 1:00pm
UCLA Center for Health Sciences, CHS 43-105
  • Event

Recent Publications

Chronic intermittent nicotine delivery via lung alveolar region-targeted aerosol technology produces circadian pharmacokinetics in rats resembling human smokers 
Shao XM, Liu S, Lee ES, Fung D, Pei H, Liang J, Mudgway R, Zhang J, Feldman JL, Zhu Y, Louie S, and Xie XS.
Journal of Applied Physiology (2018).

Job satisfaction, work environment, and successful aging: determinants of delaying retirement among acute care nurses.
Wargo-Sugleris M, Robbins WA, Lane CJ, Phillips LR. Journal of Advanced Nursing: 1-14. DOI 10.1111/jan.13504.

Pooled analysis of the HLA-DRB1 by smoking interaction in Parkinson disease. 
Chuang YH, Lee PC, Vlaar T, Mulot C, Loriot MA, Hansen J, Lill CM, Ritz B, Elbaz A.
Ann Neurol. 2017 Nov;82(5):655-664. doi: 10.1002/ana.25065. Epub 2017 Oct 26.

Association of residential greenness with obesity and physical activity in a US cohort of women 
PJ Villeneuve, M Jerrett, JG Su, S Weichenthal, DP Sandler 
Environmental Research 160, 372-3842018 October 2017

Parental occupational exposures and the risk of childhood sporadic retinoblastoma: a report from the Children’s Oncology Group 
Negar Omidakhsh, Greta R Bunin, Arupa Ganguly, Beate Ritz, Nola Kennedy, Ondine S von Ehrenstein, Niklas KrauseJulia E Heck
Parental occupational exposures and the risk of childhood sporadic retinoblastoma: a report from the Children’s Oncology Group
Occup Environ Med Published Online First: 26 October 2017. doi: 10.1136/oemed-2017-104404 10/26/2017

Cognitive decline, mortality, and organophosphorus exposure in aging Mexican Americans. 
Paul KC, Ling C, Lee A, To TM, Cockburn M, Haan M, Ritz B.
Environ Res. 2017 Oct 2;160:132-139. doi: 10.1016/j.envres.2017.09.017. [Epub ahead of print]

Current Challenges and New Opportunities for Gene-Environment Interaction Studies of Complex Diseases. 
McAllister K, Mechanic LE, Amos C, Aschard H, Blair IA, Chatterjee N, Conti D, Gauderman WJ, Hsu L, Hutter CM, Jankowska MM, Kerr J, Kraft P, Montgomery SB, Mukherjee B, Papanicolaou GJ, Patel CJ, Ritchie MD, Ritz BR, Thomas DC, Wei P, Witte JS. 
Am J Epidemiol. 2017 Oct 1;186(7):753-761. doi: 10.1093/aje/kwx227. 

Lessons Learned From Past Gene-Environment Interaction Successes. 
Ritz BR, Chatterjee N, Garcia-Closas M, Gauderman WJ, Pierce BL, Kraft P, Tanner CM, Mechanic LE, McAllister K. 
Am J Epidemiol. 2017 Oct 1;186(7):778-786. doi: 10.1093/aje/kwx230. Review.
PMID: 28978190

Occupational pesticide use and Parkinson's disease in the Parkinson Environment Gene (PEG) study. 
Narayan S, Liew Z, Bronstein JM, Ritz B. 
Environ Int. 2017 Oct;107:266-273. doi: 10.1016/j.envint.2017.04.010. Epub 2017 Aug 2. 

Exposure to ambient dichloromethane in pregnancy and infancy from industrial sources and childhood cancers in California. 
Park AS, Ritz B, Ling C, Cockburn M, Heck JE
Int J Hyg Environ Health. 2017 Oct;220(7):1133-1140. doi: 10.1016/j.ijheh.2017.06.006. Epub 2017 Jun 24. 

Organophosphate pesticides and PON1 L55M in Parkinson's disease progression. 
Paul KC, Sinsheimer JS, Cockburn M, Bronstein JM, Bordelon Y, Ritz B. 
Environ Int. 2017 Oct;107:75-81. doi: 10.1016/j.envint.2017.06.018. Epub 2017 Jul 6.