Organic Consumers Association

Tell California’s Prop 65 Regulators: There’s No Safe Level of Monsanto’s Cancer-Causing Roundup Herbicide

roundup with no symbolCalifornia is moving forward with its legal responsibility under Proposition 65 to warn the public that glyphosate, the main ingredient in Roundup weed-killer, is a probable human carcinogen.

Monsanto tried, but failed to keep the warning off its labels. So now the Biotech Bully is trying to convince Proposition 65 regulators at the Office of Environmental Health Hazard Assessment to adopt a ridiculously high level (it’s called a No Significant Risk Level) for how much glyphosate is allowed in something before the public has to be warned that it’s carcinogenic.

TAKE ACTION BEFORE 5 P.M. TODAY: Tell California’s Office of Environmental Health Hazard Assessment (OEHHA), “There is no safe level of Monsanto’s Roundup herbicide! Warnings must be required for any exposure to the carcinogen glyphosate! Discharges of glyphosate to sources of drinking water must be prohibited!”

The OEHHA has proposed a No Significant Risk Level (NSRL) of 1.1 milligrams of glyphosate per person per day. According to a 2016 federal EPA analysis, the typical adult is exposed to 0.09 mg/kg/day of glyphosate per day through diet. So, it is unlikely that the 1.1 mg limit would result in warnings on food. 

The OEHHA’s proposed No Significant Risk Level for glyphosate does not comply with the statutory requirements of Title 27 of the California Code of Regulations § 25703(a). According to Moms Across America, OEHHA:

Is proposing a No Significant Risk Level (NSRL) thousands of times higher than the level proven to cause liver disease, which is a precursor to cancer, and millions of times higher than the level shown to stimulate the growth of breast cancer cells.

•  Does not take into consideration the unique vulnerability of a fetus, baby or child, including their sensitivity during development or their vulnerable immune systems.

•  Exempts non-target exposure from farm applications, including aerial sprays and pesticide drift, as well as use on playgrounds, roadsides and forests.

•  Did not review epidemiology studies as is required by California law.

The correlation between glyphosate exposure and cancer rates, as well as laboratory evidence of a causal link, was the basis for the World Health Organization’s finding that glyphosate is a probable human carcinogen.

More than 10 million pounds of glyphosate is used on 250 different crops in California. In the decade from 2003 to 2012, application rates skyrocketed, growing by nearly two-thirds, and they continue to rise.

In 2015, glyphosate was California’s number one pesticide by acreage. Among crops, almonds consume the lion’s share (about 20 percent) of the state’s glyphosate use. It is also used on alfalfa, carrots, cotton, oranges, peaches and nectarines, pistachios, processing tomatoes, rice, strawberries, table, wine and raisin grapes, and walnuts.

Living near agriculture increases rates of serious heath problems, including cancer. Overall cancer incidence for California children under 20 years of age is the same as the national rate (17.4 per 100,000), but California Department of Health data shows the child cancer rates in some agricultural counties are up to 24 percent higher than the national average.

The increased and intensified use of glyphosate may also explain the high incidence of cancer among children in places like Napa County. The California Department of Pesticides Registry shows Napa County farmers in 2013 used 50,416 pounds of glyphosate on 34,776 acres of grapes in 3,412 applications. This is up from 2003 figures which show the use of 42,771 pounds on 37,055 acres in 3,245 applications. Glyphosate use on vineyards is so intense that tests of wines revealed contamination of every sample.

In addition to agricultural uses, glyphosate is used on public lands, playgrounds and golf courses across the state. School districts in Burbank, Glendale, Irvine, Santa Rosa, Sonoma Valley, Petaluma, Cloverdale and Sebastopol have agreed to halt their use of glyphosate after demands from parents.

Since most of our exposure to glyphosate comes through agricultural pollution that can’t be labeled with a warning, we have to demand the lowest possible No Significant Risk Level. That’s the only way to get agricultural users to reduce their glyphosate use. Plus, for breast and liver cancer, where infinitesimal doses can trigger illness, we won’t be protected unless the NSRL is lowered.


1-25 of 4001 signatures
Number Date Name Comments
4001 1 day ago Kevin Main
4000 4 days ago Julie Duggan
3999 5 days ago Ellen Maisen With application rates skyrocketing, and over 250 crops in California affected, we must use common sense and good science to determine safe limits of exposure. If you review the scientific literatu...
3998 5 days ago Stephen Groton
3997 5 days ago Theresa Bauermeister Just like in a memorable anti-drug campaign of the past...I'm just saying NO! There is NO acceptable level of a deadly toxin in our food supply EVER! THE END!
3996 6 days ago Naomi Dauermann We need to ban RoundUp in this country! We are poisoning our food, our soil and our children!
3995 1 week ago Richard Pecha
3994 1 week ago Rob Ingenthron We need to remove glyphosate (and the renamed alternative) from our food chain. We have to stop the ridiculous loopholes that manufacturers attempt to push through that allow them to keep a ...
3993 1 week ago Helene Allen Don't want cancer causing chemicals in my food! Do you??
3992 1 week ago JAMES JONES
3991 1 week ago sara javed
3990 2 weeks ago Mark Axelrood
3989 3 weeks ago STACIE CHARLEBOIS
3988 3 weeks ago Mark Bastian
3987 3 weeks ago sarah stevens
3986 3 weeks ago robert hartley
3985 3 weeks ago Thea Blair
3984 3 weeks ago Chanda Unmack
3983 3 weeks ago Anonymous people use this stuff to kill themselves
3982 3 weeks ago Anonymous My husband was very ill with non Hopkins lymphoma
3981 4 weeks ago Adrian Rodrigues
3980 4 weeks ago Anonymous I am signing because as this herbicide has been found in organic foods, it appears to be unavoidable and unsafe.
3979 4 weeks ago Jennifer Lee
3978 4 weeks ago Frederica Huxley
3977 4 weeks ago Laura Glover RoundUp needs to be done away with. It isn't safe in any amount for people, animals, insects or weeds. Very poisonous just like Monsanto.
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