The world's most common form of litter is cigarette filters. Researchers from the University of Gothenburg have discovered that these filters are releasing thousands of toxic substances and plastic fibers that are harmful to aquatic larvae. In light of these findings, the researchers are advocating
t is estimated that 4.5 trillion cigarettes with filters are smoked and butted every year. 65% of these butts are not disposed of in a waste bin or ashtray.
Cigarette butts are a ubiquitous sight in our streetscapes – on sidewalks, at bus stops, in parks, and on beaches. Not only are they unsightly, but they also pose a serious threat to the environment. A study conducted by researchers at the University of Gothenburg has revealed that the microfibers and chemicals that leak out of cigarette filters are toxic to aquatic larvae.
, the researchers tested the effects of the toxins that are found in the filter after smoking, as well as the substances that are in the filter from the start, on aquatic mosquito larvae. It turns out that the toxins lead to a 20% higher mortality rate among mosquito larvae. Previous research has shown that the toxins in the filters also have adverse effects on many other aquatic organisms.
“The clean-up costs the municipalities millions of kronor, but there will still be many cigarette butts in the environment. We are now conducting a survey of plastic litter across all of Sweden with the aid of community science in what we’re calling the Plastics experiment.
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