Spatial and temporal variations of coastal microplastic pollution in Hong Kong
| Autor: | Chu Wa Mak, Eric Tung-Po Sze, Y.Y. Tsang, S.W. Lam, King Ming Chan, C. Liebich |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Wet season Pollution Microplastics Geologic Sediments media_common.quotation_subject 010501 environmental sciences Aquatic Science Oceanography 01 natural sciences Abundance (ecology) Dry season 0105 earth and related environmental sciences media_common computer.programming_language 010604 marine biology & hydrobiology Harbour Environmental science Hong Kong Bay computer Surface water Plastics Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Marine pollution bulletin. 161 |
| ISSN: | 1879-3363 |
| Popis: | Further to our 2015–16 investigation, this study revealed the repeated presence of microplastics (MPs) in the coastal environment (Deep Bay, Tolo Harbour, Tsing Yi and Victoria Harbour) of Hong Kong from July 2016 to March 2017. The highest level of MPs in coastal surface water (17,182 particles/100 m3) was detected in Tsing Yi. Microplastic abundance in sediments of different sites (59 to 225 plastic particles/kg), however, did not vary significantly. MPs in the size of ≤1 mm were predominated in surface waters (53.3% to 98.6%) and sediments (79.1% to 96.8%). MPs in the shape of pellets and fragments were prevalent in surface waters and sediments respectively. Seasonal pattern of microplastic pollution was consistently observed in Victoria Harbour and Tsing Yi, where the number of MPs was always higher in dry season than in wet season for two consecutive years. |
| Databáze: | OpenAIRE |
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