Industrial Hygiene & Safety



IAQ & Mold/Fungi



Asbestos & Lead-Based Paint



Expert Witness



About HSA

Health Science Associates (HSA), a Certified Small Business Enterprise, is a full service Industrial Hygiene and Environmental consulting and technical organization which is dedicated to providing specialized services in the occupational and environmental health and safety field. Our services include, but are not limited to, program compliance review, industrial hygiene evaluations, asbestos and lead-based paint surveys, mold assessments, Indoor Air Quality (IAQ), training, injury and illness prevention programs, site specific health and safety plans, noise, dust, air monitoring, clearance sampling, hazard assessments and expert witness services. LEARN MORE

Why Choose Us

With a depth and breadth of expertise unparalleled in the industry, we have garnered a well earned reputation for helping clients achieve compliance with laws, government regulations, professional, and/or state of the art guidelines. Our prudent attention to detail has also consistently helped companies reduce risk, protect employees, eliminate potential fines, and prevent expensive lawsuits. We do what needs to be done, with a pragmatic and ethical approach. We provide accurate assessments based on data you can trust, and offer customized, cost effective, and immediate IH/OEHS solutions while keeping an eye on long-term savings and environmentally responsible results.

Emergency_Response-1 Emergency Response
Fast_Turnaround.png Fast Turnaround
Highly_Trained_Stuff Highly-Trained Staff

Full_Cycle_Project_Management Full-Cycle Project Management
DetailedThoroughReports Detailed & Thorough Reports
InnovativeDataManagement Progressive Problem Solving


Don’t take our word for it – here’s what our clients say:


"Thank you. We are very pleased working with your company. The tech you sent out did a wonderful job working with our employees. Thank you all."

J. Godoy


The HSA team that we used for the Tank project at the marine terminal did an excellent job, hope I can get the same team for the next project.

Jorge O


"I cannot rank HSA services high enough. Every aspect of the work was performed with professionalism and great communication."


Jim Choate

Executive Director

Facilities and Transportation


Health Science is a pleasure to work with. Their knowledge and experience has greatly assisted us with various projects throughout our city. Every associate from Health Science has been professional and always willing to assist our staff with any questions before, during and after projects. I look forward to working with Health Science Associates for our Industrial Hygiene needs.


Carlos Paiz

Safety Manager

City of Anaheim

News & Events

We’re sharing the latest and greatest in facts, current events and updates from all around the Environmental, Health & Safety industry!

  • Heat Illness Prevention

    Join Cal/OSHA’s 2023 Heat Illness Prevention (HIP) Network Call The HIP Network Call includes an overview of heat illness prevention requirements, 2023 regulatory updates, how to get free heat training materials, and more. Friday April 28: 10:00-12:00 Free to register and join. Register on Zoom

  • NIOSH Issues Guidance on Verifying Respirator Shelf Life

    In March, NIOSH published a new fact sheet (PDF) on assessing the shelf lives of filtering facepiece respirators (FFRs). Although the agency does not currently require providers of approved FFRs to designate shelf lives for their products, a recent NIOSH study has “noted numerous challenges that the PPE community experiences when trying to locate FFR… Read More

  • silica-dust
    Silica Trending in the news

    The hazards of silica have been know for decades, that it completely true. Francis Perkins, the first female cabinet member of the United States, serving as the fourth Secretary of Labor under Franklin Delano Roosevelt (1933-1945) was part of an exhaustive investigation of the hazards of silica and was responsible for a report issued in… Read More