hazard evaluation system and information service
HESIS Publications
Biological, physical, and other workplace hazards
Ergonomic Series | Ergonomic info for specific occupations
Technical documents and journal articles
Chemical hazards on the job
Alerts and Advisories
- 1-Bromopropane (PDF) (n-Propyl Bromide)
- Cycloheximide (PDF)
- Diacetyl (Butter Flavor Chemical) Use in Flavoring Manufacturing Companies (PDF, English) | Spanish (PDF)
- Diesel Engine Exhaust (PDF)
- Methylene Chloride
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Methylene chloride is dangerous... There are safer alternatives! (PDF) | Spanish (PDF)
- n-Hexane Use in Vehicle Repair (PDF)
- n-Methylpyrrolidone (NMP) (PDF)
- Ribavirin (PDF)
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Shared Tagging Guns and Bloodborne Disease Risk (PDF)
Fact sheets
- Arsenic & Chromate Wood Preservatives (PDF)
- Auto Repair - Aerosol Cleaner Use (PDF)
- Choosing Paint Removal Methods: Safety Considerations (PDF)
- Chromium-6 (PDF)
- Epoxy Resin Systems (PDF)
- Ethylene Oxide (PDF)
- Fluorocarbons (Freons) (PDF)
- Formaldehyde (PDF)
- Glutaraldehyde (PDF)
- Glycol Ethers (PDF)
- Isocyanates (PDF)
- Isoflurane May Harm Veterinary Worker Health (PDF)
- Mercury (PDF)
- Methyl Bromide (PDF)
- Methylene Chloride (PDF)
- Methyl Methacrylate (PDF)
- PCBs (PDF)
- Perchloroethylene (PDF)
- If I’m Pregnant, Can the Chemicals I Work with Harm My Baby? (PDF)
- Protecting the Health of Lithographic Printers: Safer Alternatives to Toxic Cleanup Solvents (PDF)
- Styrene (PDF)
- Toluene (PDF)
- 1,1,1-Trichloroethane (PDF)
- Trichloroethylene (TCE) (PDF)
- Xylene (PDF)
Booklets
- Artificial Fingernail Products: A Guide to Chemical Exposures in the Nail Salon (PDF)
- Understanding Toxic Substances: An Introduction to Chemical Hazards in the Workplace (PDF, 1.3 MB)
- Workplace Chemical Hazards to Reproductive Health (PDF): A Resource for Worker Health and Safety Training and Patient Education
Biological, physical, and other workplace hazards
- Preventing Work-Related Coccidioidomycosis (Valley fever) (PDF)
- Electronic Waste Recycling: Working Safely (PDF) | Spanish (PDF)
- Hepatitis C (PDF)
- Injury, Illness, & Pollution Prevention in Auto Repair (PDF)
- Molds in Indoor Workplaces (PDF)
- Pulmonary Function Testing (PDF, English) | Spanish (PDF)
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Rabies (PDF)
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Valley fever: Tailgate Training Guide for California Construction Workers (PDF)
Ergonomic Series
- Guide to Getting Medical Care for Job-Related Pain That Won’t Go Away (PDF) - guide to medical care for musculoskeletal disorders
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Physician’s Guide to the California Ergonomics Standard (PDF)
Ergonomic Information for Specific Occupations
- 911 Dispatchers – Helping Others Shouldn’t Hurt You (PDF)
- Drilling Overhead: Ways to Make a Tough Job Easier (PDF)
- Drywall Installers – Prevent Back, Wrist, Neck and Shoulder Injuries (PDF)
- Grocery Cashiers – Serving Customers Shouldn’t Hurt You (PDF)
- Lab Workers – Take the Pain Out of Pipetting (PDF)
- Nursery Workers – Prevent Back, Hand, Neck and Wrist Problems! (PDF)
- Pavement Breaker Operators – Prevent Back, Joint, and Muscle Injuries! (PDF)
- Sewing Machine Operators: Feel Better! Work Better! (PDF, English) | Spanish (PDF)
- Warehouse Workers – Take the Hurt Out of Handling Materials (PDF)
Medical guidelines
Other medical guidelines available upon request: Arsenic, Carbon Monoxide, Cyanide, Hydrogen Sulfide, Mercury, Organophosphates and Carbamates.
Technical documents and journal articles
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HESIS Annual Report to the Legislature 2022 2023 (PDF 9.9MB) | 2021-2022 (PDF) | 2020-2021 (PDF) | 2019-2020 (PDF) | 2018-2019 (PDF)
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Effectiveness of COVID-19 Vaccination (PDF) - literature review (October 2021)
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Evidence for SARS-CoV-2 and MERS-CoV as Aerosol Transmissible Pathogens and the Role of Ventilation in Reducing Transmission (PDF) - literature review (October 2021)
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Implementing Safer Alternatives to Lithographic Cleanup Solvents to Protect the Health of Workers and the Environment - journal article abstract (2009)
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Occupational Health Hazard Risk Assessment Project for California: Identification of Chemicals of Concern, Possible Risk Assessment Methods and Examples of Health Protective Occupational Air Concentrations – prepared for HESIS by the Office of Environmental Health Hazard Assessment, Cal/EPA, December 2007.
Complete OEHHA technical report (PDF, 2.3 MB, 161 pages) | Executive Summary (PDF)
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Assessment, Development and Demonstration of Alternatives for Five Emerging Solvents (PDF) – prepared for HESIS by the Institute for Research and Technical Assistance (96 pages, October 2006)
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Investigation of Work-Related Glutaraldehyde Exposures at Two Heart Valve Manufacturing Companies (PDF) - executive summary (March 2006)
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Transforming Medical Waste Disposal Practices to Protect Public Health (PDF): Worker Health and Safety and the Implementation of Large Scale, Off-Site Steam Autoclaves (104 pages, February 2006)
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Chemical Hazard Surveillance: An Evaluation of Data Collection Systems in California, the U. S., and Scandinavia (PDF) - UC Berkeley Report to HESIS, May 2003
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N-Hexane-Related Peripheral Neuropathy Among Automotive Technicians – California, 1999-2000 – MMWR report

