Advanced Practice Nursing

What is an Environmental Health Scientist?

An Environmental Health Scientist is a public health professional who identifies, assesses, and controls environmental hazards that threaten human health. They investigate air and water quality, chemical exposures, food safety, vector-borne diseases, housing conditions, occupational hazards, and climate change impacts—working to prevent illness and create healthier communities through environmental interventions.

Median Salary

$70,000 - $80,000/year

Education Required

Bachelor's in Environmental Health (entry-level)

cytotechnology program or bachelor’s in cytotechnology

Job Growth (2022-2032)

6-8%

As fast as average

Certification

REHS/RS (Registered Environmental Health Specialist)

or similar state credentials
Work Setting

Local/state health departments

EPA, consulting firms, hospitals, academia

Last Updated

March 2026

Reviewed By: Healthcare Career Specialists

What is an Environmental Health Scientist?

Environmental Health Scientists serve as the frontline defenders against environmental threats to public health. They conduct sanitation inspections of restaurants and food establishments, investigate waterborne disease outbreaks, assess lead paint hazards in housing, monitor air quality and pollution sources, evaluate hazardous waste sites, enforce environmental health regulations, respond to environmental emergencies (chemical spills, contaminated water), educate the public about environmental risks, and collaborate with engineers, physicians, and policymakers to develop solutions protecting community health.

The field addresses diverse threats: contaminated drinking water causing gastrointestinal illness, lead exposure damaging children’s cognitive development, air pollution triggering asthma, pesticide exposure among farmworkers, mold in housing exacerbating respiratory disease, foodborne pathogens causing outbreaks, vector-borne diseases (mosquitoes, ticks) spreading infections, and climate change amplifying heat-related illness and expanding disease ranges.

Why Choose This Career?

Environmental health offers tangible community impact—your inspections prevent foodborne illness, your water testing ensures safe drinking water, your housing assessments protect children from lead poisoning. The work combines science, investigation, regulation enforcement, and public service.

Compensation is moderate to good ($70K-$80K median, with senior specialists and managers earning $85K-$110K+). Job security is strong—every community requires environmental health protection, creating consistent demand. Work-life balance is favorable with standard business hours, though outbreak investigations or emergencies may require flexibility.

The profession appeals to those who love field work and hands-on investigation rather than office-only careers, want to protect vulnerable populations from environmental injustice, enjoy regulatory enforcement and compliance work, and are passionate about environmental protection’s health dimensions.

Three Spheres of CNS Influence

What Environmental Health Scientists Do

Environmental Health Scientists perform microscopic examination and analysis of cellular specimens across diverse sources and body systems.

Daily Responsibilities:

Inspections and Compliance:

  • Conduct sanitation inspections of restaurants, food establishments, institutions
  • Evaluate public swimming pools and recreational water facilities
  • Inspect childcare facilities, schools, camps for health and safety
  • Assess temporary mass gathering events (festivals, fairs)
  • Enforce environmental health codes and regulations
  • Issue permits, violations, closure orders when necessary
  • Educate facility operators on compliance requirements

Environmental Assessment:

  • Test drinking water quality (bacteria, chemicals, contaminants)
  • Monitor air quality measuring particulates, ozone, pollutants
  • Investigate soil contamination near industrial sites
  • Assess lead hazards in housing and schools
  • Evaluate indoor air quality (mold, radon, ventilation)
  • Sample for environmental toxins and heavy metals
  • Conduct noise pollution assessments

Outbreak Investigation:

  • Respond to foodborne illness complaints and outbreaks
  • Trace contamination sources through epidemiologic investigation
  • Collect food, water, and environmental samples for laboratory testing
  • Interview affected individuals identifying common exposures
  • Implement control measures preventing further spread
  • Write outbreak investigation reports

Vector Control:

  • Monitor mosquito populations and disease surveillance
  • Implement vector control programs (larvicides, adulticiding)
  • Inspect properties for mosquito breeding sites
  • Educate public about tick-borne disease prevention
  • Coordinate with vector control districts

Emergency Response:

  • Respond to chemical spills, hazardous material releases
  • Assess public health threats from environmental disasters
  • Provide guidance during natural disasters (hurricanes, floods)
  • Evaluate building habitability after fires or floods
  • Support evacuation and shelter operations

Specializations:

  • Food Safety: Restaurant inspection, food processing facilities, HACCP
  • Water Quality: Drinking water systems, wastewater, recreational water
  • Housing and Lead: Lead-based paint, healthy housing, indoor air quality
  • Occupational Health: Workplace safety, industrial hygiene, pesticide exposure
  • Vector Control: Mosquito-borne diseases, integrated pest management
  • Climate and Health: Heat island effect, climate adaptation, extreme weather

What’s Next?

Work Environment:

This section covers hospitals, specialty clinics, academic environments, and leadership roles—helping you visualize your future workplace.

Work Environment

Environmental Health Scientists divide time between field inspections (restaurants, housing, water treatment plants, industrial facilities) and office work (report writing, data analysis, permit processing). Work requires driving throughout jurisdictions, exposure to unsanitary conditions, potential hazardous material contact, and interaction with facility operators ranging from cooperative to confrontational. Most positions are Monday-Friday with occasional weekend or evening inspections. Physical demands include walking, climbing stairs, accessing confined spaces, and working outdoors in all weather.

What’s Next?

Salary & Job Outlook

Median salaries range from $70,000 to $80,000. Entry-level environmental health specialists start at $50,000-$60,000.

 

Salary & Job Outlook

National Salary Overview:

Median salaries range from $70,000 to $80,000. Entry-level environmental health specialists start at $50,000-$60,000, while experienced specialists and supervisors earn $85,000-$110,000+.

Salary by Experience Level

Experience Level

Salary Range

Career Stage

Entry-Level (0-2 years)

$50,000 - $62,000

Inspector, building experience, supervised

Mid-Career (3-7 years)

$65,000 - $80,000

Senior specialist, complex investigations, mentoring

Experienced (8-15 years)

$78,000 - $95,000

Lead specialist, program coordination

Senior (15+ years)

$90,000 - $115,000+

Supervisor, director, environmental health manager

Salary by Employer Type

Employer Type

Average Salary

Notes/Work Environment

Local Health Departments

$65,000 - $85,000

Direct service, field work, public sector benefits

State Health/Environmental Agencies

$70,000 - $95,000

Policy, oversight, specialized programs, state benefits

Federal (EPA, CDC, FDA)

$75,000 - $110,000

National programs, research, regulations, federal benefits

Environmental Consulting Firms

$70,000 - $105,000

Private sector, client-based, site assessments

Hospitals/Healthcare Systems

$68,000 - $90,000

Infection prevention, safety, regulatory compliance

Academic Institutions

$60,000 - $95,000

Research, teaching, grant-funded

Salary by Geographic Location

State/Region

Average Salary Range

Notes

California

$80,000 - $110,000

Strong environmental regulations, cost of living

Northeast (NY, MA, NJ)

$70,000 - $95,000

Dense population, environmental challenges

Texas/Southeast

$60,000 - $82,000

Lower cost of living, growing programs

Midwest (IL, OH, MI)

$58,000 - $78,000

Moderate wages, industrial legacy issues

Pacific Northwest

$70,000 - $95,000

Environmental focus, quality of life

Job Outlook:

The BLS projects 6-8% growth through 2032, about as fast as average. Growth driven by aging infrastructure requiring oversight, climate change adaptation, environmental justice emphasis, food safety concerns, and emerging contaminants (PFAS, microplastics).

What’s Next?

How to Become an Environmental Health Scientist

The pathway to becoming a Environmental Health Scientist requires specific education in cytotechnology and national certification.

Educational Pathway Timeline

Total Timeline:

4-5 years

(bachelor’s + certification) or 6-7 years (with master’s)

Step 1

Bachelor's Degree (4 years)

Common Majors:

  • Environmental Health Sciences
  • Public Health (Environmental Health concentration)
  • Environmental Science
  • Biology or Microbiology
  • Chemistry
Step 2

Professional Certification

REHS/RS (Registered Environmental Health Specialist): Nationally recognized credential through NEHA (National Environmental Health Association).

Requirements:

  • Bachelor’s degree in environmental health or related field
  • 1-2 years work experience (varies by state)
  • Pass REHS/RS examination
  • Continuing education for renewal


State Licensure:
Many states require environmental health specialist licensure with varying requirements.

Step 3

(Optional): Master's Degree

MPH in Environmental Health Sciences: Advances career into management, research, policy roles.

Curriculum:

  • Environmental health science
  • Toxicology
  • Exposure assessment
  • Risk assessment
  • Environmental epidemiology
  • Policy and regulations
Step 4

Continuing Education

  • Annual NEHA conferences
  • Training on new regulations (food code updates, water standards)
  • Emerging contaminants education (PFAS, lead, microplastics)
  • Climate and health adaptation

What’s Next?

Career Path and Advancement

The Environmental Health Scientist career path offers progression through expertise development, specialization, and leadership.

Typical Career Progression:

Years 1-3:

$50K-$65K.

Environmental Health Specialist I – Routine inspections, learning regulations

Years 4-8:

$68K-$85K.

Senior Specialist – Complex investigations, specialized programs

Years 9-15:

$82K-$100K.

Program Coordinator/Lead – Oversee programs, train staff

Years 15+:

$95K-$120K+.

Environmental Health Director – Department leadership, policy

Alternative Pathways:

  • Consulting: Private sector environmental assessments, remediation ($75K-$110K)
  • Industrial Hygiene: Occupational health, workplace safety ($80K-$115K)
  • Academia: Teaching, research in environmental health ($65K-$105K)
  • Federal Career: EPA, CDC, FDA environmental programs ($80K-$130K)
  • Policy/Advocacy: Environmental health policy, nonprofit advocacy ($70K-$100K)

What’s Next?

Pros and Cons

In the next section, you’ll discover the clinical, leadership, communication, and analytical skills that top EMT professionals rely on every day.

Pros and Cons

Advantages

Disadvantages

What’s Next?

Frequently Asked Questions

Still have questions? The final section addresses common concerns and practical questions about becoming and working as a Environmental Health Scientist

Frequently Asked Questions

Is this career more science or regulation enforcement?

Both. Environmental health specialists apply scientific knowledge (microbiology, toxicology, epidemiology) while enforcing health codes and regulations. You need to understand pathogens, chemical hazards, and disease transmission, then translate that into compliance requirements. The balance varies—some positions are 70% inspections/enforcement, others more investigation and assessment. If you want pure science, consider environmental health research. If you want pure enforcement, consider code enforcement. This field uniquely combines both.

Moderate risk with proper precautions. Exposures include: unsanitary conditions (raw sewage, decomposed food, pests), potential infectious disease (investigating disease outbreaks), chemical hazards (sampling contaminated sites, inspecting industrial facilities), physical risks (unstable structures, aggressive animals, confrontational facility operators). Training in safety protocols, personal protective equipment, and situational awareness minimize risks. Serious injuries uncommon but possible. Less dangerous than firefighting or law enforcement, more hazardous than office-only public health roles.

Field presence essential for inspections, investigations, sampling—core job functions require being on-site at facilities, homes, water systems, outbreak locations. However, hybrid models emerging: 3 days field work, 2 days office (reports, permit processing, data analysis). Purely remote environmental health specialist positions essentially non-existent given field work requirements. If remote work is priority, consider environmental health research, policy, or consulting roles with less field emphasis.

Environmental Health Science: Human health focus—how environmental factors cause disease, preventing health impacts, public health regulations. Work for health departments, EPA (health-focused programs), hospitals. Environmental Science: Broader ecological focus—ecosystems, biodiversity, pollution, climate change, natural resource management. Work for EPA (broader environmental programs), conservation organizations, natural resource agencies. Overlap exists—water quality relevant to both—but environmental health is specifically health-protective while environmental science is ecological.

What’s Next?

Overview

The overview brings together key highlights, role impact, and career context—making it a helpful starting point whether you’re just beginning or refining your decision.

Nurse Educator
Career Guide

Overview

What EHS do

Work Environment

Salary & Outlook

How to Become

Career Path

Details

FAQ

Free Downloadable Resources

Get comprehensive guides to help you on your CNS career journey 

Download REHS/RS Exam Study Guide

Prepare for certification

Download Food Code Reference

FDA Food Code essentials

Download Environmental Health Career Ladder

Map advancement pathways

Related Career Guides

Disease investigation and population health

Health promotion and education

Occupational health and safety

Drinking water and wastewater

References and Sources

U.S. Bureau of Labor Statistics. (2024). Occupational Outlook Handbook: Environmental Scientists and Specialists. Retrieved from bls.gov

National Environmental Health Association. (2025). REHS/RS Credential Information. Retrieved from neha.org

Salary.com & Payscale.com. (2024-2025). Environmental Health Specialist Salary Data

Next Review: September 2026

Last Updated: March 2026