Lo Hoi Shing, Po Beverly Hoi Ki, Li Laam, Wong Aman Yi Man, Kong Richard Yuen Chong, Li Lei, Tse William Ka Fai, Wong Chris Kong Chu, Cheung Siu Gin, Lai Keng Po
Department of Science, School of Science and Technology, The Open University of Hong Kong, Ho Man Tin, Hong Kong Special Administrative Region.
Department of Zoology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada.
Mar Pollut Bull. 2021 Mar;164:112090. doi: 10.1016/j.marpolbul.2021.112090. Epub 2021 Jan 30.
The occurrence and spatial distribution of bisphenol A (BPA) and analogues bisphenol B (BPB), bisphenol F (BPF) and bisphenol S (BPS) were investigated in microplastic on 11 beaches in Hong Kong. At 10 sites, BPA was the only detected chemical with concentrations ranged from 82.4-989 ng g microplastic. BPA, BPB and BPS co-occurred at only one site, where it is located close proximity to the outfall of a sewage treatment plant. There was no significant spatial difference of BPA concentrations in microplastic when all the sites were considered, indicating that some remote and presumably cleaner beaches have been contaminated. PE, PP and PS (represented >90% of total polymers) were the most dominated polymers, but there was no correlation between polymer types and BPA concentrations. No evidence was found that the BPA and its analogues accumulate on microplastic since the concentrations were comparable to those found in the sediment.
在香港11个海滩的微塑料中，对双酚A（BPA）及其类似物双酚B（BPB）、双酚F（BPF）和双酚S（BPS）的存在情况及空间分布进行了调查。在10个地点，BPA是唯一检测到的化学物质，其浓度范围为82.4 - 989纳克/克微塑料。BPA、BPB和BPS仅在一个地点同时出现，该地点紧邻污水处理厂的排污口。当考虑所有地点时，微塑料中BPA浓度没有显著的空间差异，这表明一些偏远且推测较为清洁的海滩也已受到污染。PE、PP和PS（占聚合物总量的>90%）是最主要的聚合物类型，但聚合物类型与BPA浓度之间没有相关性。没有证据表明BPA及其类似物在微塑料上积累，因为其浓度与沉积物中的浓度相当。
