Waterfront Times 09 01 2019 E Edition Page 1

Serving South Florida's Coastal Neighborhoods S E P T E M B E R 2 0 1 9 Y E A R 1 0 I S S U E 3 Admiralty Law 5 l Classifieds 9 l Event Calendar 6 l Tide Table 7 Dining Dockage............................................ 4 Sexual assault at sea................................... 5 Study takes a closer look at 'coral-safe' sunscreens On board SASEBO, Japan - Petty Officer 3rd Class Dawnmarie Laing, a 2018 Fort Lauderdale High School graduate who served in ROTC, now serves aboard one of the Navy's newest and most advanced amphibious ships at Fleet Activities Sasebo, patrolling one of the world's busiest maritime regions as part of U.S. 7th Fleet. aluminum in coastal waters by 4 percent, and of tita- nium by nearly 20 percent. The study was published in the journal Environmental Science & Technology. These metals and nutrients are normally present at very low amounts in seawater. Further research is needed to determine the effects higher levels could have on marine ecosystems, the authors said in a journal news release. Impact of trace compounds remains unclear HealthDay News - Is the sunscreen you slather on your body marketed as safe for coral reefs? New re- search suggests those claims may not be entirely true. Trace metals and other compounds in many sun- screens have unknown effects on marine ecology, say researchers studying Mediterranean waters. Previous studies have shown that ultravio- let-screening ingredients in sunscreens can harm cor- al and other marine life when the sunscreens wash off bathers' bodies. That's led to the development of "coral-safe" sunscreens that don't contain oxybenzone and octi- noxate, the two sunscreen ingredients most widely linked to coral reef damage. However, the impact other trace compounds in sunscreens might have on marine ecosystems remains unclear, explains study author Araceli Rodriguez-Romero, a chemist at the University of Cantabria in Spain. In this study, the researchers wanted to find out how quickly sunscreen releases trace metals and nu- trients into seawater, and how this could affect over- all levels of the compounds in coastal waters. They added sunscreen containing titanium diox- ide to samples of Mediterranean seawater. (Titanium dioxide, a mineral sunscreen, is often used in place of oxybenzone and octinoxate.) The researchers found that some compounds were released into the water more quickly after UV treatment, which simulated sun exposure. Aluminum, silica and phosphorous had the high- est rates of release into the water in both light and dark conditions. Using the data from their tests, the researchers created a model that predicts the release of com- pounds from sunscreen under different conditions. Based on the model, the researchers estimated that on a typical summer day at the beach, sunscreen from beachgoers could increase the concentration of Studies have shown that ultraviolet-screening ingredients in sunscreens can harm coral and other marine life when the sunscreens wash off bathers' bodies. Up close How sunscreen chemicals enter our environ- ment: The sunscreen you apply may not stay on your skin. When we swim or shower, sunscreen may wash off and enter our waterways. How sunscreen chemicals can affect marine life: Green algae: Can impair growth and photosynthesis. Coral: Accumulates in tissues. Can induce bleaching, damage DNA, deform young, and kill. Mussels: Can induce defects in young. Sea urchins: Can damage immune and repro- ductive systems and deform young. Fish: Can decrease fertility and reproduction and cause female characteristics in male fish. Dolphins: Can accumulate in tissue and be transferred to young. Chemicals in sunscreens that can harm ma- rine life include: Oxybenzone, Benzophenone-1, Benzophenone-8, OD-PABA, 4-Methylbenzylidene camphor, 3-Benzylidene camphor, nano-Titanium dioxide, nano-Zinc oxide. How we can protect ourselves and marine life: Seek shade between 10 a.m. and 2 p.m. Use Ultraviolet Protection Factor (UPF) sunwear and choose sunscreens with chemicals that don't harm marine life. Info courtesy/National Ocean Service: For more information visit https://oceanservice.noaa. gov/news/sunscreen-corals.html.

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