RRJ

Reference:

University of Pittsburgh, (2009, August 17). Pitt research suggests EPA pesticide

exposure test too short, overlooks long term effects. eScience News, Retrieved August 30, 2009, from http://esciencenews.com/articles/2009/08/17/pitt.research.suggests.epa.pesticide.exposure.test.too.short.overlooks.long.term.effects.

Summary:

This article "Pitt research suggests EPA pesticide exposure test too short, overlooks long term effects" shows the EPA did a short test on pesticides to discover pesticides’ side effects on human and animals. In addition, Pitt research shows the effect of toxic pesticide endosulfan on several kinds of frogs. The results show 50% from primary frog stages were dead after a short time from treatments. Scientists said the tests were too short and are not enough to show the real side effect result. According to endosulfan results for 10 years within safety levels for human and animals, there are reductions in amphibian populations and humans may be affected.

Reaction:

I agree with the information in this article. Because pesticides have affected the ecosystem,they made an imbalance between pests and their natural enemies. To provide food, many countries used pesticide to protect their crops; they increased imbalance in our world. For this reason, many organizations such as EPA made rules to protect our environment . Each pesticide has a safe concentration level to protect human and animals, but it still makes danger and affects our environment. The short tests on pesticides, I think, are not enough to show us pesticides’ side effect on all organisms. There are many organisms in our environment; they coexist with us in our chain food. If they were killed or died out, there will be an imbalance between pests and their natural enemies and natural enemies will become pests. When natural enemies become pests, we need to create new pesticides to kill new pest and these chemicals will cause new problems in our environment. We should do more research on pesticides’ side effect to protect our environment. In my country, there are few pesticides problems because we used pesticides on a small scale.