Roundup is a pesticide that has been used for decades on farms and in back yards to control weeds. This pesticide uses glyphosate as the active ingredient, which is often found in other weed killers as well. However, there is a lot of controversy surrounding Roundup and its link to cancer. At the same time, Monsanto, the maker of Roundup, assures everyone the product is safe. Several studies have agreed with the safety of the product while others indicate it is dangerous.
In Support of Roundup
The US Environmental Protection Agency first stated that the pesticide was dangerous and posed a risk for certain cancers. However, it changed its stance in 1993 when it re-registered the product and stated it did not pose an unreasonable risk to people or to the environment when used as directed with the instructions on the label.
The UK Pesticide Action Network has also stated that the toxicity levels of Roundup are very low. However, glyphosate can cause issues with animals if they consume the pesticide or have contact with plants that have been sprayed. Even though the agency stated that the active ingredient was relatively harmless, it also suggested that other ingredients may increase the danger. For instance, surfactants are added to help the glyphosate adhere to plants better, but some are toxic to fish and may cause cancer in people.
The Link to Cancer
Even though there are agencies and studies that suggest Roundup is relatively safe, others indicate the opposite. The International Agency for Research on Cancer (IARC) has completed a study and suggests that glyphosate may cause cancer or be carcinogenic.
The study conducted research in the US, Canada and Sweden and showed that glyphosate was found in the urine and blood of farmers as well as tumors in animals. Their research indicated an increased risk of non-Hodgkin’s lymphoma in people who were exposed to the weed killer.
After the IARC study was released, the EPA opened an investigation into the risks of the chemical in Roundup. At this time, it has not changed its stance against glyphosate, but the review is not complete.
The Availability of Roundup
Roundup has been used in over 130 counties, but some areas have banned it with the rise of studies that indicate a high risk of health issues. Lawsuits have been filed against Monsanto for incorrect labeling and marketing with plaintiffs claiming the product caused their cancer.
The pesticide is used in many applications. They include the following:
- Agricultural – certain formula of Roundup are designed specifically for farms where large amounts of acreage must be weed-free for the production of crops
- Residential – Roundup is often used to kill weeds in yards and gardens and along foundations
- Commercial – Roundup is used by property owners and managers to kill weeds and other plants around landscaping and in parking areas
- Municipal – local governments have used Roundup to keep weeds out of city parks and off public property
While Roundup has been popular ever since its introduction, the development of GMO crops has increased the use. These crops have been genetically modified to make them resistant to the chemicals in the weed killer. This allows users to spray Roundup over the crops and remove weeds without killing the plants.
Recent Studies
While Roundup has been at the center of controversy for some time, new studies have been released that still provide contradicting results. For instance, a study released in 2017 in Journal of the National Cancer Institute showed that no connection between glyphosate and non-Hodgkin’s lymphoma was found to exist. The study did say there was a trend for an increased risk for AML, which is a type of leukemia.
A more recent study was performed by scientists from UC Berkeley, University of Washington and Mount Sinai School of Medicine, which showed that there was a 41 percent increase in risk for non-Hodgkin’s lymphoma for those who had the highest level of exposure to the chemical. With the evidence from this study, it concludes that those with the highest exposure have the most significant risk. This means that farmers and others in the agricultural industry are more at risk than for those who use Roundup in other settings.
While the numerous studies that have been done show conflicting evidence as to whether Roundup does increase the risk of cancer, there is enough of a concern that more studies are warranted. Those who have cancer after working with the product are seeking answers and assistance if the pesticide is to blame.