lettuce
nectarines
No, as long as there is no herbicide or pesticide residue.
Every years, EWG comes out with "The Shopper's Guide to Pesticides" where it ranks pesticide contamination for 53 popular fruits and vegetables based on an analysis of 51,000 tests for pesticides on these foods, conducted from 2000 to 2009 by the U.S. Department of Agriculture and the federal Food and Drug Administration. Nearly all the studies on which the guide is based tested produce after it had been rinsed or peeled.
less pesticide residue
Yes, a liquid pesticide residue can contain microbial contaminants if proper storage and handling practices are not followed. Microorganisms can colonize and grow on pesticide residues if conditions are favorable, leading to potential contamination and health risks.
Just about any food is available through organic production. But perhaps the most telling examples are those that would have the most pesticide residue if conventionally grown. Included on that list are apples, apricots, cantalope, celery, cherries, cucumbers, grapes, green beans, peaches, spinach, and strawberries.
A biobed is a pit of soil used in agriculture to capture pesticide residue and to break it down.
volume by volume extraction by acetone and hexane, acetonitrile and dichloromethane
It has been recently proven that eating apples is a most excellent way to be healthy, as long as you wash off any pesticide residue.
Fruit and vegetables should always be washed under a running cold water tap before eating or cooking.
Pesticide residues are often found in larger concentrations due to factors such as increased agricultural practices, the use of more potent chemicals, and inadequate application methods. Over-reliance on pesticides can lead to accumulation in the soil and water, exacerbated by environmental conditions like rain or irrigation that can wash residues into concentrated areas. Additionally, improper storage and handling of pesticides can contribute to higher levels of contamination. These factors combined can result in significant pesticide residue levels in crops and the environment.
Pesticides increase in higher trophic levels due to Bilogical magnification .