DOI: 10.1021/acs.est.9b07040
论文题名: Biological Responses to Climate Change and Nanoplastics Are Altered in Concert: Full-Factor Screening Reveals Effects of Multiple Stressors on Primary Producers
作者: Yang Y. ; Guo Y. ; O'Brien A.M. ; Lins T.F. ; Rochman C.M. ; Sinton D.
刊名: Environmental Science and Technology
ISSN: 0013936X
出版年: 2020
卷: 54, 期: 4 语种: 英语
Scopus关键词: Aquatic ecosystems
; Carbon dioxide
; Pollution
; Temperature
; Climate change scenarios
; Concentration-dependent
; Environmental parameter
; Environmental stressors
; Global climate changes
; Irradiation conditions
; Photosynthetic microorganisms
; Polystyrene nanoparticles
; Climate change
; carbon dioxide
; nanoparticle
; nanoplastic
; polystyrene
; carbon dioxide
; climate change
; concentration (composition)
; freshwater ecosystem
; global climate
; inhibition
; low temperature
; microorganism
; nanoparticle
; primary production
; Acutodesmus obliquus
; algal growth
; Article
; climate change
; environmental factor
; freshwater alga
; freshwater environment
; global change
; global climate
; growth rate
; light intensity
; low temperature
; microplastic pollution
; nonhuman
; productivity
; temperature
; algae
; Scenedesmus obliquus
英文摘要: While the combined presence of global climate change and nanosized plastic particle (i.e., nanoplastic) pollution is clear, the potential for interactions between climate-change-shifting environmental parameters and nanoplastics is largely unknown. Here, we aim to understand how nanoplastics will affect species in concert with climate change in freshwater ecosystems. We utilized a high-throughput full-factorial experimental system and the model photosynthetic microorganism Scenedesmus obliquus to capture the complexity of interacting environmental stressors, including CO2, temperature, light, and nanoplastics. Under a massive number of conditions (2000+), we consistently found concentration-dependent inhibition of algal growth in the presence of polystyrene nanoparticles, highlighting a threat to primary productivity in aquatic ecosystems. Our high-treatment experiment also identified crucial interactions between nanoplastics and climate change. We found that relatively low temperature and ambient CO2 exacerbated damage induced by nanoplastics, while elevated CO2 and warmer temperatures reflecting climate change scenarios somewhat attenuated nanoplastic toxicity. Further, we revealed that nanoplastics may modulate light responses, implying that risks of nanoplastic pollution may also depend on local irradiation conditions. Our study highlights the coupled impacts of nanoplastics and climate change, as well as the value of full-factorial screening in predicting biological responses to multifaceted global change. Copyright © 2020 American Chemical Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159245
Appears in Collections: 气候变化与战略
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作者单位: Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON M5S 3G8, Canada; Department of Ecology and Evolutionary Biology, University of Toronto, 25 Wilcocks Street, Toronto, ON M5S 3B2, Canada
Recommended Citation:
Yang Y.,Guo Y.,O'Brien A.M.,et al. Biological Responses to Climate Change and Nanoplastics Are Altered in Concert: Full-Factor Screening Reveals Effects of Multiple Stressors on Primary Producers[J]. Environmental Science and Technology,2020-01-01,54(4)