In the study, published in the journal Science, researchers tested around 200 samples of honey from around the world. They found that about 75 percent of the samples contain significant levels of at least one of the five common neonicotinoids, Science News reported. Check out this comprehensive guide to the foods with the most pesticides.
Pesticide levels vary between regions, according to the researchers. In North America, 86 percent of samples contained pesticides. About 80 percent of samples from Asia, 79 percent in Europe, and 73 percent in Africa contained pesticides. Researchers found pesticides in 71 percent of samples from the Australian region, too. Meanwhile, only 57 percent of South American honey had pesticides.
“On the global scale, the contamination is really striking,” study coauthor Edward Mitchell, a soil biologist at the University of Neuchtel in Switzerland, told Science News.
Bees likely pick up the neonicotinoids and other pesticides as they pollinate crops, scientists say. When the bees return to their hive, the pesticides contaminate the honey. While the concentrations found in honey are below the maximum levels deemed safe for human consumption, pesticides could cause significant harm to bees. (By the way, the chemicals found in this common household item could be giving you cancer.)
“Neonicotinoids are not the only problem that bees face,” Dave Goulson, a biologist at the University of Sussex, who was not involved in the study, told PBS. “But certainly [the research suggests] very strongly that exposure to these pesticides is one of the factors causing bees to decline.”
Researchers hope to continue working to determine what we can do to protect the bees, as well as reduce our intake of harmful pesticides. In the meantime, brush up (and stock up!) on these little-known facts about organic foods.
[Source: Science News]