Chlorpyrifos

CAS Number: 2921-88-2

SERIOUS
health hazard

MODERATE
health hazard

FEW OR NO
health hazards

0 79

80 89

90 100

Sources of exposure:

Food

Occupational exposure, environmental contamination (water, air, soil)

Description:

Chlorpyrifos is an organophosphate insecticide used to control pests in agricultural crops, with additional non-agricultural applications such as roadsides, golf courses, and forest management. Multiple restrictions are in place, and ongoing risk assessments continue to evaluate its regulatory status.

Health concerns:

Developmental Toxicity

May impact fetal development and birth outcomes.

Neurotoxicity

May impact brain function or development.

Irritant

May cause skin, eye, or respiratory irritation.

Ecotoxicity

May be toxic to ecosystems and wildlife.

Banned/restricted lists:

Stockholm Convention on Persistent Organic Pollutants (POPs)

References

HOW MILLION MARKER SCORES CHEMICALS

Million Marker's Ingredient Hazard Scoring uses multiple chemical databases and a science-backed scoring system to compute hazard scores for thousands of chemicals found in consumer products and listed on ingredient labels.

We identified key chemicals based on a database compiling dozens of authoritative sources, screening tools, and QSAR models.

Hazard scores within 11 different health categories (carcinogens, endocrine disruptors, reproductive toxicants, developmental toxicants, genotoxicity, neurotoxicity, organ system toxicity, immunotoxicity, respiratory toxicity, skin/eye/respiratory irritants, and ecotoxicity).

They are weighted based on several factors, including strength of evidence for adverse impacts in humans, severity, and potential contamination.