The US leads the world in meat production. One-third of all land in the continental US is used to grow feed and provide pasture for animals that will be killed for meat, according to the environmental group Mighty Earth. Now that agricultural pollution’s impact on drinking water is coming into focus, meat producers such as Tyson Foods are under pressure to set standards that would require large farms in their supply chains to clean up their acts.
October 11th, 2017 – by Dr. Mercola
Modern agricultural practices have led to ever-increasing amounts of chemicals being used on our food, and whether we’re talking about pesticides, herbicides or fungicides, most have deleterious effects on health.
According to the latest report on pesticide residues in food by the U.S. Department of Agriculture (USDA), a mere 15 percent of all the food samples tested in 2015 were free from pesticide residues. In 2014, over 41 percent of samples had no detectable pesticide residues on them. 
That just goes to show how quickly our food is being poisoned. At that trajectory, we may eventually find out none of the non-organic food sold in 2016 or 2017 was pesticide-free.
Recent news has highlighted a number of problems associated with this out-of-control use of agricultural chemicals, starting with atrazine.