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Skin Lightening Cosmetics and Mercury Toxicity
By Roberta Attanasio Skin lightening cosmetics are popular in many regions of the world — they’re used to lighten darker skin because of their ability to inhibit production of melanin, the substance that gives the skin its color. The active ingredients in some of these cosmetics often include toxic chemicals, as for example hydroquinone, fluorinated corticosteroid and inorganic mercury. The World Health Organization (WHO) provides interesting facts about the global use of skin lightening cosmetics. In India, 61% of the dermatological market consists of skin lightening products. In Mali, Nigeria, Senegal, South Africa and Togo, 25%, 77%, 27%, 35% and 59% of women, respectively, are reported to use skin lightening products on a…
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Sentinel Bottlenose Dolphins: Exposure to Toxic Chemicals
By Roberta Attanasio Bottlenose dolphins – the playful, intelligent and sleek swimmers frequently seen in warm and shallow waters along coastlines – are important biological indicators or sentinels. As coastal dwellers, they are exposed to pollutants deriving from human activities and, as predators at the top of the food web, they can help evaluate the overall health status of their ecosystems. In 2011, two teams of researchers published results from their studies on bottlenose dolphins (Tursiops truncates) as indicators of persistent organic pollutants in coastal ecosystems. Persistent organic pollutants are toxic chemicals recognized as a global threat to human health and the environment. Because they can be transported by wind…
