Pentachlorophenol

CAS Number: 87-86-5

SERIOUS
health hazard

MODERATE
health hazard

FEW OR NO
health hazards

0 79
80 89
90 100
36

Sources of exposure:

Industrial uses

Historically treated utility poles, railroad ties, industrial wood preservatives, contaminated soil, groundwater, and contact with treated wood

Description:

Pentachlorophenol is a chlorinated phenolic compound historically used as a pesticide and industrial wood preservative to protect wood from fungi and insects. Its use has been phased out or prohibited in many jurisdictions, including the United States. Exposure may still occur through historically treated wood, contaminated soil, or groundwater.

Health concerns:

Cancer

Known or suspected to increase cancer risk in humans.

Endocrine Disruption

May alter hormone function and contribute to chronic diseases and disorders.

Neurotoxicity

May impact brain function or development.

Organ System Toxicity

May cause organ damage and disease.

Immunotoxicity & Allergens

May impact immune system function or cause allergic reactions.

Respiratory Toxicity & Asthmagens

May damage the lungs or trigger asthma.

Irritant

May cause skin, eye, or respiratory irritation.

Ecotoxicity

May be toxic to ecosystems and wildlife.

Banned/restricted lists:

  • California Proposition 65 - OEHHA - cancer
  • EU Cosmetics Regulation Annex II - Prohibited
  • Rotterdam Convention - Annex III - Prior Informed Consent (PIC) - Pesticide

References

  1. US Environmental Protection Agency. Cheminformatics Modules, Computational Toxicology and Exposure Informatics (CompTox). California Department of Public Health. California Safe Cosmetics Reportable Ingredients List.

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.