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Global Pattern of Microplastics (MPs) in Commercial Food-Grade Salts: Sea Salt as an Indicator of Seawater MP Pollution | Environmental Science & Technology

Previous studies have identified microplastics (MPs) in commercial table salts but could not exactly address the origin of the MPs because of several limitations. The present study is based on the hypothesis that commercial sea salts can act as an indicator of MP pollution in the surrounding environment unless the MPs are filtered out during the manufacturing process. A total of 39 different salt brands produced at geospatially different sites, including 28 sea salt brands from 16 countries/regions on six continents, were investigated. A wide range of MP content (in number of MPs per kg of salt; n/kg) was found: 0–1674 n/kg (excluding one outlier of 13 629 n/kg) in sea salts, 0–148 n/kg in rock salt, and 28–462 n/kg in lake salt. Relatively high MP content was identified in sea salts produced in Asian countries/regions. The abundance of MPs in unrefined sea salts (n = 25) exhibited significant linear correlations with plastic emissions from worldwide rivers (r2= 0.33; p = 0.003) and with the MP pollution levels in surrounding seawater (r2= 0.46; p = 0.021) in the published literature. The results indicate that not only is Asia a hot spot of global plastic pollution, as previous stu

Sorgente: Global Pattern of Microplastics (MPs) in Commercial Food-Grade Salts: Sea Salt as an Indicator of Seawater MP Pollution | Environmental Science & Technology

 

Microplastica e PFAS i nuovi nemici. Allerta Greenpeace ed USA.

Sorgente: L’inquinamento ambientale danneggia anche i reni.

 

No more butts | The BMJ

Reducing plastic pollution means banning the sale of filtered cigarettes Growing awareness of the harm done to ecosystems through disposal of vast quantities of plastic has created public outrage and compelled governments to act.1 The European Union, for example, will ban many single-use plastic products, such as cutlery, plates, and straws, from 2021.2 However, these measures do not extend to one of the leading sources of plastic waste worldwide that is hiding in plain sight: the cigarette butt. The largest part of most cigarette butts is a non-biodegradable plastic filter made of cellulose acetate.3 Filters first appeared in the 1950s following early health concerns about cigarettes, and their rapid adoption was helped by the post-war explosion in manufacturing of plastics.4 The tobacco industry portrayed filters as a way to make cigarettes safer by absorbing some of the “tar” that was implicated in the lung cancer epidemic. We now know that this safety argument was a myth (box 1), one of many created by the tobacco industry to sell cigarettes.6 Box 1 ### Filtering the truth • “Filters are the deadliest fraud in the history of human civilization. They are put on cigarettes t

Sorgente: No more butts | The BMJ

 

La Corte dei Conti svela il fantasmagorico mondo delle 7.090 società partecipate, tra doppioni e aziende fantasma – Business Insider Italia

Sorgente: La Corte dei Conti svela il fantasmagorico mondo delle 7.090 società partecipate, tra doppioni e aziende fantasma – Business Insider Italia

 
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Pubblicato da su 25 ottobre 2019 in pollution

 

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