Publications Home || Browse by topic || Browse by program || Ecology website

Publication Summary

Our Ecology website has changed, which can cause broken links.
To report these, please contact us with the publication and broken link.


Levels of Non-Nutritive Substances In Fertilizers (Historical)

Publication number Date Published
99-450December 1999
VIEW NOW This publication is historical. It is unavailable on our website. To request a copy, please use the contact listed below.
Author(s) Department of Agriculture
Description Report describes legislation which protects human health and the environment by creating regulatory standards for nine heavy metals commonly found in commercial fertilizers (arsenic, cadmium, cobalt, lead, mercury, molybdenum, nickel, selenium and zinc). These standards set limits for the annual loading (addition) of these metals to soils in Washington. Washington is first state to set clear, scientifically defined standards designed to identify and minimize contaminants in fertilizers. Since the passage of the Act, only fertilizers that meet the Washington metals standards have been registered by the Department of Agriculture for distribution in the state.
NOTES This publication is not available through this site. For help, please contact the Ecology Library at 360-407-6150 or
The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.

ADA Accessibility
The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188.
Visit Ecology’s website for more information.
Contact Ecology Library at 360-407-6150 or
Keywords soil, report, health, waste, zinc, lead, fertilizer, agriculture