Abstract：
:Plastic debris, specifically microplastic in the aquatic environment, is an escalating environmental crisis. Efforts at national scales to reduce or ban microplastics in personal care products are starting to pay off, but this will not affect those materials already in the environment or those that result from unregulated products and materials. To better inform future microplastic research and mitigation efforts this study (1) evaluates methods currently used to quantify microplastics in the environment and (2) characterizes the concentration and size distribution of microplastics in a variety of products. In this study, 50 published aquatic surveys were reviewed and they demonstrated that most (~80%) only account for plastics ≥ 300 μm in diameter. In addition, we surveyed 770 personal care products to determine the occurrence, concentration and size distribution of polyethylene microbeads. Particle concentrations ranged from 1.9 to 71.9 mg g-1 of product or 1649 to 31,266 particles g-1 of product. The large majority ( > 95%) of particles in products surveyed were less than the 300 μm minimum diameter, indicating that previous environmental surveys could be underestimating microplastic contamination. To account for smaller particles as well as microfibers from synthetic textiles, we strongly recommend that future surveys consider methods that materials < 300 μm in diameter.
journal_name
Environ Managejournal_title
Environmental managementauthors
Conkle JL,Báez Del Valle CD,Turner JWdoi
10.1007/s00267-017-0947-8subject
Has Abstractpub_date
2018-01-01 00:00:00pages
1-8issue
1eissn
0364-152Xissn
1432-1009pii
10.1007/s00267-017-0947-8journal_volume
61pub_type
杂志文章,评审abstract：:This article is based on a multimethod study designed to clarify influences on wildfire hazard vulnerability in Arizona's White Mountains, USA. Findings reveal that multiple factors operating across scales generate socially unequal wildfire risks. At the household scale, conflicting environmental values, reliance on f...
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