Protecting Your Building’s Air Quality Throughout Southern California
When occupants complain about headaches, allergies, or respiratory issues at work, the problem often starts with what they can’t see—the air they’re breathing. Health Science Associates has spent over 50 years investigating and resolving indoor air quality (IAQ) issues for buildings throughout Southern California, from small office spaces in Orange County to multi-story government buildings in downtown Los Angeles.
Our Certified Industrial Hygienists (CIHs) have the expertise and equipment to identify exactly what’s affecting your indoor environment, whether it’s mold growth after water damage, volatile organic compounds (VOCs) from new construction, or poor ventilation that’s concentrating contaminants. We don’t just identify problems—we provide practical, cost-effective solutions that protect your employees and your investment. In some instances, air sampling is not necessary to solve an IAQ issue, just a thorough review of the facility and issue.
Comprehensive Indoor Air Quality Investigations
IAQ problems rarely have simple causes. That’s why our approach goes beyond basic air sampling to evaluate every potential source of contamination in your building. Our IAQ investigations examine ventilation systems, building materials, proximal facilities (if accessible), moisture sources, and occupant activities to create a complete picture of your indoor environment.
We’ve completed some of Southern California’s most complex IAQ projects, including the City and County of San Francisco’s multi-building evaluation, the Cal-Trans Spring Street Building investigation, and the comprehensive assessment of Los Angeles County Child Care offices in the former U.S. Borax Building. These large-scale projects required us to test for and identify multiple contaminant types simultaneously—asbestos, VOCs, formaldehyde, particulates, PCBs, fungi, hydrogen sulfide, and even legionnaires organisms—while keeping facilities operational.
Whether you’re dealing with a single-day office investigation or need a multi-week evaluation of an entire commercial complex, our team brings the same thorough approach to every project. We understand that indoor air quality issues can shut down operations, trigger lawsuits, and create serious health risks for occupants, which is why we work efficiently to identify causative agents and develop actionable remediation strategies.
Mold and Fungal Contamination Expertise
Over the past three decades, HSA has performed countless microbiological and fungal investigations for residential, industrial, and commercial properties across Southern California. Mold problems don’t discriminate—we’ve found mold growth in new construction related to construction defects, older buildings with hidden water damage, and everything in between.
Our mold investigations serve diverse clients including building occupants concerned about health effects, property managers responding to tenant complaints, building owners facing insurance claims, and attorneys handling construction defect litigation. We’ve provided expert testimony and litigation support for both plaintiff and defendant cases, giving us a unique perspective on what documentation and evidence will hold up under scrutiny.
When we inspect for fungal contamination, we’re looking beyond visible mold growth. Our CIHs use a variety of sampling and investigative methods, including air sampling, tape sampling, bulk material sampling, moisture meters, and infrared cameras to identify hidden colonization behind walls, above ceilings, and in HVAC systems. We then correlate those findings with building history, and occupant complaints to determine the full extent of contamination and its source.
Our Indoor Air Quality Services
HSA provides complete IAQ and mold services from initial assessment through post-remediation verification. Our building surveys identify potential contamination sources and moisture problems before they become major issues. We collect air, tape, and bulk samples analyzed by accredited laboratories to identify specific contaminants and their concentrations.
When testing reveals problems, we develop detailed remediation recommendations that comply with industry standards and regulatory requirements. For larger projects, we provide abatement project management and monitoring to ensure contractors follow proper containment and removal procedures. After remediation is complete, our post-abatement inspections and monitoring verify that contamination has been successfully eliminated and your building is safe for re-occupancy.
We also provide litigation support and expert witness services for cases involving indoor air quality disputes, construction defects, and occupational exposure claims. Our CIHs can prepare detailed reports that document contamination sources, exposure levels, and health implications with the scientific rigor required for legal proceedings.
Certified Training for Your Team
Beyond our consulting services, HSA is certified by Cal/OSHA as a training provider for all AHERA asbestos refresher courses and by the California Department of Public Health (CDPH) for lead worker, lead supervisor/project monitor, and lead continuing education courses. If your facility management team needs to stay current on hazardous materials regulations, we offer the training you need to maintain compliance.
Every project we undertake is thoroughly reviewed and evaluated by a HSA CIH with specific lead and/or asbestos certification before we issue recommendations. This ensures you receive accurate, defensible findings backed by our decades of experience in Southern California’s unique building environments.
Frequently Asked Questions About Indoor Air Quality Testing
Common warning signs include employee complaints about headaches, respiratory problems, or unusual odors, visible mold growth or water stains, recent water damage or flooding, and poor ventilation with stuffy or stale air. You should also consider IAQ testing after renovations, if you’ve had tenant complaints, before purchasing or leasing a building, or if your facility has been closed for an extended period. HSA can conduct an initial walkthrough to determine whether a full assessment is warranted based on your specific situation and building history.
Mold testing focuses specifically on identifying fungal contamination through air, surface, or bulk sampling. A comprehensive IAQ investigation can examine a variety of IAQ issues including, but not limited to, mold, VOCs, formaldehyde, poor ventilation, particulates, sewage issues and other pollutants as deemed necessary based on complaints. For buildings with multiple occupant complaints or complex issues, we typically recommend a full IAQ assessment that evaluates your entire indoor environment rather than testing for just one contaminant type. This approach often identifies problems that wouldn’t be caught by mold testing alone.
The timeline depends on your building’s size and complexity. A straightforward office investigation might take just one day for sampling, with laboratory results typically available within a week. Larger commercial buildings or facilities with multiple contamination concerns may require several days of sampling and multiple weeks for comprehensive laboratory analysis. After we receive results, we’ll typically deliver a detailed report with findings and recommendations within 7-10 business days. For urgent situations affecting building operations or employee health, we can often expedite the process.
Most IAQ testing can be conducted while your building remains occupied with minimal disruption to operations. Our industrial hygienists work around your schedule to collect samples efficiently. However, remediation requirements vary depending on what we find. Minor mold remediation might be done during off-hours or on weekends, while extensive contamination could require temporary closure of affected areas or the entire building. We’ll provide clear guidance about operational impacts in our recommendations so you can plan accordingly and communicate with occupants about any necessary closures.
Schedule Your Indoor Air Quality Assessment Today
Don’t let IAQ problems jeopardize your employees’ health or your business operations. HSA has the expertise, equipment, and certifications to identify contamination sources and develop effective solutions for buildings throughout Southern California.
Our team of CIHs is ready to help you create a healthier indoor environment. Whether you’re dealing with suspected mold growth, employee health complaints, or need pre-purchase due diligence, we’ll provide the thorough investigation and practical recommendations you need.
Contact Health Science Associates at (714) 220-3922 or email hsa@healthscience.com to discuss your indoor air quality concerns and schedule an assessment. With over 50 years of experience serving Southern California, we have the knowledge and resources to solve even the most complex IAQ challenges.