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Page 33 - சுற்றுச்சூழல் அறிவியல் தொழில்நுட்பம் News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Climate-friendly foam building insulation may do more harm than good

 E-Mail The use of the polymeric flame retardant PolyFR in eco-friendly foam plastic building insulation may be harmful to human health and the environment, according to a new commentary in Environmental Science & Technology. The authors analysis identifies several points during the lifecycle of foam insulation that may expose workers, communities, and ecosystems to PolyFR and its potentially toxic breakdown products. With the climate crisis fueling demand for energy-efficient insulation, the production of PolyFR is increasing rapidly. That s because this flame retardant is added to all foam plastic building insulation in North America to comply with flammability codes, replacing the flame retardant hexabromocyclododecane that has been globally phased out due to its toxicity and persistence. PolyFR is commonly assumed to be safe. However, the authors question that assumption.

Protective ship coatings as an underestimated source of microplastic pollution

 E-Mail Shipping traffic can be a major source of tiny plastic particles floating in the sea, especially out in the open ocean. In a paper published in the scientific journal Environmental Science & Technology, a team of German environmental geochemists based at the University of Oldenburg s Institute of Chemistry and Biology of the Marine Environment and led by Dr Barbara Scholz-Boettcher for the first time provides an overview of microplastics mass distribution in the North Sea. The scientists found that most of the plastic particles in water samples taken from the German Bight, an area in the south-eastern corner of the North Sea which encompasses some of the world s busiest shipping lanes, originate from binders used in marine paints. Our hypothesis is that ships leave a kind of skid mark in the water which is of similar significance as a source of microplastics as tyre wear particles from cars are on land, Scholz-Boettcher says.

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