By INGFEI CHENPublished: March 4, 2010 For 14 years, since they first reported that a disturbing proportion of deaths among rescued California sea lions were caused by metastatic cancer, researchers have been trying to pinpoint the source of the illness. In 1996, Dr. Frances Gulland, the director of veterinary science at the Marine Mammal Center […]
By Maggie Fox, Health and Science EditorWASHINGTONWed Mar 3, 2010 3:36pm EST WASHINGTON (Reuters) – Atrazine, one of the most commonly used and controversial weedkillers, can turn male frogs into females, researchers reported on Monday. The experiment is the first to show such complete effects of atrazine, which had been known to disrupt hormones […]
By Kelly Zito, Chronicle Staff Writer Sunday, December 27, 2009 State scientists on Monday will cull mussels from the waters around Treasure Island as part of a national study of so-called “emerging contaminants” – certain compounds found in everyday items like shampoo, bedding and birth control pills. California and federal officials say such chemicals are […]
OTTAWA, December 3, 2009 — The controversy surrounding the unintended effects of herbicide and pesticide use has intensified as researchers from the University of Ottawa’s Department of Biology have identified that atrazine, a heavily-used herbicide, alters the sexual development in frogs. There have been numerous scientific and journalistic reports on the detrimental effects of herbicides, […]
By Peter Fimrite, Chronicle Staff WriterThursday, December 3, 2009 Chemicals from cosmetics, perfumes and other fragrances were detected along with dozens of other industrial compounds in the umbilical cords of African American, Asian and Latino infants in the United States, according to a national study released Wednesday. Laboratory tests paid for by the nonprofit Environmental […]
Chemicals in plastics alter the brains of baby boys making them “more feminine” and uninterested in rough games, say researchers. Males exposed to high doses in the womb went on to be less likely to play with boys’ toys like cars or to join in rough and tumble games, they found. The University of Rochester […]
By LINDSEY HOSHAWPublished: November 9, 2009 ABOARD THE ALGUITA, 1,000 miles northeast of Hawaii — In this remote patch of the Pacific Ocean, hundreds of miles from any national boundary, the detritus of human life is collecting in a swirling current so large that it defies precise measurement. Light bulbs, bottle caps, toothbrushes, Popsicle sticks […]
ScienceDaily (Sep. 25, 2009) — A comparison of breast milk samples from Denmark and Finland revealed a significant difference in environmental chemicals which have previously been implicated in testicular cancer or in adversely affecting development of the fetal testis in humans and animals. This finding is published in the International Journal of Andrology. In […]
ScienceDaily (Sep. 14, 2009) — Intersex occurrence in smallmouth and largemouth basses is widespread in numerous river basins throughout the United States is the major finding of the most comprehensive and large-scale evaluation of the condition, according to new research. Of the 16 fish species researchers examined from 1995 to 2004, the condition was most […]
CHICAGO, Illinois, August 25, 2009 (ENS) – The common herbicide atrazine, known to impact wildlife reproductive health, has contaminated watersheds and drinking water throughout much of the United States, finds a new report released Monday by the Natural Resources Defense Council that raises concern about the chemical’s effects on human reproduction. The environmental nonprofit organization […]
