Sulfur Dioxide

CAS Number: 7446-09-5

SERIOUS
health hazard

MODERATE
health hazard

FEW OR NO
health hazards

0 79

80 89

90 100

Sources of exposure:

Food

Industrial uses

Wine, dried fruits, food preservatives, outdoor air pollution, combustion emissions

Description:

Sulfur dioxide is a colorless gas used as a preservative and antioxidant in certain foods and beverages, particularly wine and dried fruits. It has several industrial applications and is also used to produce sulfuric acid. Sulfure dioxide is released during the combustion of sulfur-containing fuels and certain industrial processes, contributing to outdoor air pollution.

Health concerns:

Developmental Toxicity

May impact fetal development and birth outcomes.

Genotoxicity

May cause mutations or damage DNA in cells.

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 - developmental

References

California Department of Public Health. California Safe Cosmetics Reportable Ingredients List. US National Library of Medicine. PubChem database.

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.