Gateway on Pesticide Hazards and Safe Pest Management
Beyond Pesticides offers resources below to evaluate the health and ecological effects of specific chemical exposure from ACTIVE INGREDIENTS in pesticide products, as well as regulatory information and supporting scientific documents. Because various pesticide products can contain more than one active ingredient, it is important to READ the LABEL to determine chemical components.
With 192 different active ingredients and counting, it is essential to establish the connection between the use of these chemicals and their respective hazards.
View the step-by-step guide on how to search for the active ingredient(s) in pesticide products below:
- Go to U.S. EPA's Pesticide Product and Label System and enter the product name. The generic product name may vary.
- After searching, click on the chemical ingredients tab or the link for the most recent label to find Active Ingredients.
Chemical List Label List
If one selects the chemical ingredients tab, skip to Step 4 . If not, proceed to step number 3
- To find the active ingredient(s) on the label, search for the page in the document containing the date of registration. Usually, the active ingredients section occurs within the first few pages of the label document.
- Return to the Beyond Pesticides Gateway and search for the active ingredient name in the yellow box to the right or from the list below.
- Fact Sheet: Chlorothalonil.pdf
- Product Names:
- Chemical Class: Organochlorine fungicide
- Uses: Agricultural crops, Christmas trees, turf and golf course, residential lawns, adhesive and grout additive, paint preservative, wood treatment
- Alternatives: Agriculture, Ornamental/Lawn
- Beyond Pesticides rating: Toxic
Health and Environmental Effects
- Cancer: Likely (16)
- Endocrine Disruption: Not documented
- Reproductive Effects: Yes (6)
- Neurotoxicity: Yes (14)
- Kidney/Liver Damage: Yes (4)
- Sensitizer/ Irritant: Yes (8)
- Birth/Developmental: Not documented
- Detected in Groundwater: Yes (6)
- Potential Leacher: Yes (8)
- Toxic to Birds: Not documented
- Toxic to Fish/Aquatic Organisms: Yes (8)
- Toxic to Bees: Not documented
- Regulatory Status:
- EPA Reregistration Eligibility Decision (RED) signed (9/1998)
- New York tolerance petition
- Supporting information:
- Daily News Blog entries (Beyond Pesticides)
- Asthma, Children and Pesticides (Beyond Pesticides)
- NCAP Chlorothalonil Factsheet (Northwest Coalition for Alternatives to Pesticides)
- Extoxnet Chlorothalonil Factsheet (Extension Toxicology Network)
- PAN Pesticides Database:Chlorothalonil (Pesticide Action Network)
- Long-term effects of neonicotinoid insecticides on ants. Schläppi, D., Kettler, N., Straub, L., Glauser, G. and Neumann, P., 2020. Communications biology, 3(1), pp.1-9.
- Assessing Field‐Scale Risks of Foliar Insecticide Applications to Monarch Butterfly (Danaus plexippus) Larvae. Krishnan, N., Zhang, Y., Bidne, K.G., Hellmich, R.L., Coats, J.R. and Bradbury, S.P., 2020. Environmental Toxicology and Chemistry, 39(4), pp.923-941.
- Human exposure and risk assessment to airborne pesticides in a rural French community.. Coscollà C, López A, Yahyaoui A, Colin P, et al. 2017. Sci Total Environ. 584-585:856-868