Green_et_al_2019.docx (7.17 MB)
Cigarette butts have adverse effects on initial growth of perennial ryegrass (gramineae: Lolium perenne L.) and white clover (leguminosae: Trifolium repens L.)
journal contribution
posted on 2023-08-30, 16:26 authored by Dannielle S. Green, Bas Boots, Jaime Da Silva Carvalho, Thomas StarkeyCigarette filters (butts) are currently the most abundant form of anthropogenic litter on the planet, yet we know very little about their environmental impacts on terrestrial ecosystems, including plant germination and primary production. When discarded, filters contain a myriad of chemicals resulting from smoking tobacco and some still contain unsmoked remnants. A greenhouse experiment was used to assess the impacts of discarded filters of regular or menthol cigarette, either from unsmoked, smoked, or smoked cigarettes with remnant tobacco, on the growth and development of Lolium perenne (perennial ryegrass) and Trifolium repens (white clover). After 21 days, shoot length and germination success were significantly reduced by exposure to any type of cigarette filter for the grass and clover. Although total grass biomass was not measurably affected, the root biomass and root:shoot ratio were less in the clover when exposed to filters from smoked regular cigarettes and those with remnant tobacco. Cigarette filters caused an increase in chlorophyll-a in clover shoots and an increase in chlorophyll-b in grass shoots. Accordingly, whilst the chlorophyll a:b ratio was increased in the clover exposed to cigarette filters, it was decreased in grass. This study indicates the potential for littered cigarette filters to reduce growth and alter short-term primary productivity of terrestrial plants.
History
Refereed
- Yes
Volume
182Page range
109418Publication title
Ecotoxicology and Environmental SafetyISSN
1090-2414External DOI
Publisher
ElsevierFile version
- Accepted version
Language
- eng
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Legacy posted date
2019-07-24Legacy creation date
2019-09-23Legacy Faculty/School/Department
Faculty of Science & EngineeringUsage metrics
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