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| DOI | 10.1016/j.jhazmat.2024.134294 |
| Unveiling the hidden impact: How biodegradable microplastics influence CO 2 and CH 4 emissions and Volatile Organic Compounds (VOCs) profiles in soil ecosystems | |
| 发表日期 | 2024 |
| ISSN | 0304-3894 |
| EISSN | 1873-3336 |
| 起始页码 | 471 |
| 卷号 | 471 |
| 英文摘要 | Biodegradable plastics promise eco-friendliness, yet their transformation into microplastics (bio-MPs) raises environmental alarms. However, how those bio-MPs affect the greenhouse gases (GHGs) and volatile organic compounds (VOCs) in soil ecosystems remains largely unexplored. Here, we investigated the effects of diverse bio-MPs (PBAT, PBS, and PLA) on GHGs and VOCs emission in typical paddy or upland soils. We monitored the carbon dioxide (CO 2 ) and methane (CH 4 ) fluxes in -situ using the self -developed portable optical gas sensor and analyzed VOC profiles using a proton -transfer reaction mass spectrometer (PTR-MS). Our study has revealed that, despite their biodegradable nature, bio-MPs do not always promote soil GHG emissions as previously thought. Specifically, PBAT and PLA significantly increased CO 2 and CH 4 emissions up to 1.9 -7.5 and 115.9 -178.5 fold, respectively, compared to the control group. While PBS exhibited the opposite trend, causing a decrease of up to 39.9% for CO 2 and up to 39.9% for CH 4 . In addition, different types of bio-MPs triggered distinct soil VOC emission patterns. According to the Mann -Whitney U -test and Partial Least Squares Discriminant Analysis (PLSDA), a recognizable VOC pattern associated with different bio-MPs was revealed. This study claims the necessity of considering polymer -specific responses when assessing the environmental impact of Bio-MPs, and providing insights into their implications for climate change. |
| 英文关键词 | Biodegradable microplastics; Paddy and upland soils; Greenhouse gases; Volatile Organic Compounds; Optical gas sensor |
| 语种 | 英语 |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS类目 | Engineering, Environmental ; Environmental Sciences |
| WOS记录号 | WOS:001233934800001 |
| 来源期刊 | JOURNAL OF HAZARDOUS MATERIALS
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/299895 |
| 作者单位 | Beijing Academy of Agriculture & Forestry Sciences (BAAFS); Jiangsu University |
| 推荐引用方式 GB/T 7714 | . Unveiling the hidden impact: How biodegradable microplastics influence CO 2 and CH 4 emissions and Volatile Organic Compounds (VOCs) profiles in soil ecosystems[J],2024,471. |
| APA | (2024).Unveiling the hidden impact: How biodegradable microplastics influence CO 2 and CH 4 emissions and Volatile Organic Compounds (VOCs) profiles in soil ecosystems.JOURNAL OF HAZARDOUS MATERIALS,471. |
| MLA | "Unveiling the hidden impact: How biodegradable microplastics influence CO 2 and CH 4 emissions and Volatile Organic Compounds (VOCs) profiles in soil ecosystems".JOURNAL OF HAZARDOUS MATERIALS 471(2024). |
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