Anthropocene microplastic stratigraphy of Xiamen Bay, China: A history of plastic production and waste management.
Anthropocene microplastic stratigraphy of Xiamen Bay, China: A history of plastic production and waste management.
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DOI：
10.1016/j.watres.2022.119215
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发表时间：
2022-10
期刊：
影响因子：
12.8
通讯作者：
Zouxia Long;Zhong Pan;X. Jin;Q. Zou;Jianhua He;Weiwen Li;C. Waters;S. Turner;J. A. I. do Sul;Xingguang Yu;Jian Chen;Hui Lin;Jianye Ren
中科院分区：
文献类型：
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作者：
Zouxia Long;Zhong Pan;X. Jin;Q. Zou;Jianhua He;Weiwen Li;C. Waters;S. Turner;J. A. I. do Sul;Xingguang Yu;Jian Chen;Hui Lin;Jianye Ren
微塑料（MP）被认为是人类世时代开始的重要地层标志之一;然而，历史上的塑料生产，废物管理以及MP积累的社会经济和时间之间的相互关系尚未得到很好的理解。在这里，来自中国厦门湾沉积物岩心的MP地层数据被用来重建塑料污染的历史。广义加性模型表明MP积累的复杂的时间演变。1952年沉积的最古老的塑料制品为30，332 ± 31，457件/kg·dw，与塑料工业的婴儿期和人类世的开始相吻合。文化大革命（1966-1976）削减了这些最初的增长。在20世纪70年代后期，MP的随后快速增长在1988年达到峰值（189，241 ± 29，495个/kg·dw），随后在20世纪80年代后期急剧下降至1996年的低值（16，626 ± 26，371个/kg·dw），这与MP来源的扩散以及塑料生产、消费和监管的演变相一致。过去几十年来，越来越多的MP意味着之前的缓解措施已经受到塑料生产增加带来的MP涌入的影响，传统MP仍然在流通中，以及对不断增长的人口的废物管理不足。目前的方法和结果代表了理解政策和经济随时间变化如何与人类世地层MP记录变化相关的概念性进展，这可能有助于全球塑料污染缓解战略的决策。
Microplastics (MPs) are considered one of the significant stratigraphic markers of the onset of the Anthropocene Epoch; however, the interconnections between historic plastic production, waste management as well as social-economic and timing of MP accumulation are not well understood. Here, stratigraphic data of MPs from a sediment core from Xiamen Bay, China, was used to reconstruct the history of plastic pollution. Generalized Additive Modeling indicates a complex temporal evolution of MP accumulation. The oldest MPs deposited in 1952 was 30,332 ± 31,457 items/kg•dw, coincide with the infancy of the plastic industry and onset of the Anthropocene. The Cultural Revolution (1966–1976) curtailed these initial increases. Subsequent rapid growth in MPs during the late 1970s was peaked at 189,241 ± 29,495 items/kg•dw in 1988 and was followed by a drastic decline in the late 1980s to a low value in 1996 (16,626 ± 26,371 items/kg•dw), coinciding with proliferation of MP sources, coupled with evolution of plastic production, consumption, and regulation. Increasing MPs over the past decades implies that previous mitigation measures have been compromised by the escalated influx of MPs from increasing plastics production, legacy MPs remaining in circulation and insufficient waste management for a growing population. The present methodology and results represent a conceptual advance in understanding how changes in policy and economics over time correlate to changes in MP records in Anthropocene strata, which may help make decisions on plastic pollution mitigation strategies worldwide.