Distribution Characteristics and Influencing Factors of Microplastics in Urban Tap Water and Water Sources in Qingdao, China
Analytical Letters2019
94 citations
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Jingxi Li,
Jinfeng Ding,
Chengjun Sun
Jingxi Li,
Jinfeng Ding,
Jinfeng Ding,
Jinfeng Ding,
Jingxi Li,
Jinfeng Ding,
Jingxi Li,
Jinfeng Ding,
Jingxi Li,
Fenghua Jiang,
Jinfeng Ding,
Fenghua Jiang,
Chengjun Sun
Jingxi Li,
Min Zhang,
Fenghua Jiang,
Jinfeng Ding,
Jinfeng Ding,
Fenghua Jiang,
Fenghua Jiang,
Jinfeng Ding,
Fenghua Jiang,
Jingxi Li,
Fenghua Jiang,
Chengjun Sun
Jingxi Li,
Jingxi Li,
Jingxi Li,
Chengjun Sun
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Chengjun Sun
Jingxi Li,
Jingxi Li,
Fenghua Jiang,
Chengjun Sun
Fenghua Jiang,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Chengjun Sun
Chengjun Sun
Jingxi Li,
Fenghua Jiang,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jinfeng Ding,
Jinfeng Ding,
Chengjun Sun
Jingxi Li,
Jingxi Li,
Chengjun Sun
Chengjun Sun
Jingxi Li,
Chengjun Sun
Chengjun Sun
Chengjun Sun
Chengjun Sun
Min Zhang,
Jingxi Li,
Jingxi Li,
Haibing Ding,
Haibing Ding,
Jinfeng Ding,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jinfeng Ding,
Jingxi Li,
Jinfeng Ding,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Chengjun Sun
Chengjun Sun
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Chengjun Sun
Fenghua Jiang,
Jingxi Li,
Fenghua Jiang,
Fenghua Jiang,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jinfeng Ding,
Jingxi Li,
Jingxi Li,
Jingxi Li,
Jinfeng Ding,
Jingxi Li,
Fenghua Jiang,
Fenghua Jiang,
Fenghua Jiang,
Jingxi Li,
Fenghua Jiang,
Fenghua Jiang,
Chengjun Sun
Chengjun Sun
Fenghua Jiang,
Jingxi Li,
Jinfeng Ding,
Jinfeng Ding,
Jinfeng Ding,
Jinfeng Ding,
Jingxi Li,
Fenghua Jiang,
Fenghua Jiang,
Fenghua Jiang,
Fenghua Jiang,
Fenghua Jiang,
Fenghua Jiang,
Fenghua Jiang,
Chengjun Sun
Chengjun Sun
Chengjun Sun
Chengjun Sun
Chengjun Sun
Chengjun Sun
Fenghua Jiang,
Fenghua Jiang,
Fenghua Jiang,
Fenghua Jiang,
Fenghua Jiang,
Fenghua Jiang,
Fenghua Jiang,
Jingxi Li,
Chengjun Sun
Jingxi Li,
Jingxi Li,
Chengjun Sun
Fenghua Jiang,
Jingxi Li,
Fenghua Jiang,
Fenghua Jiang,
Jingxi Li,
Haibing Ding,
Min Zhang,
Neal Xiangyu Ding,
Neal Xiangyu Ding,
Jinfeng Ding,
Chengjun Sun
Chengjun Sun
Haibing Ding,
Fenghua Jiang,
Chengjun Sun
Chengjun Sun
Fenghua Jiang,
Fenghua Jiang,
Chengjun Sun
Chengjun Sun
Jingxi Li,
Chengjun Sun
Fenghua Jiang,
Fenghua Jiang,
Fenghua Jiang,
Fenghua Jiang,
Jingxi Li,
Fenghua Jiang,
Chengjun Sun
Neal Xiangyu Ding,
Neal Xiangyu Ding,
Jingxi Li,
Fenghua Jiang,
Neal Xiangyu Ding,
Chengjun Sun
Neal Xiangyu Ding,
Fenghua Jiang,
Chengjun Sun
Fenghua Jiang,
Chengjun Sun
Fenghua Jiang,
Fenghua Jiang,
Chengjun Sun
Jingxi Li,
Fenghua Jiang,
Chengjun Sun
Summary
Researchers measured microplastic contamination in tap water and two reservoir water sources in Qingdao, China, finding 0.3–1.6 items/L in tap water and 0.2–0.7 items/L in source water, with rayon fibers dominating (99.2% fibers, 48.9% rayon). Water treatment was found to reduce the polymer-based risk of microplastics before reaching consumers.
Compared with the plethora studies of microplastics in the marine environment, fewer studies have been conducted in drinking water. This study investigated the distribution and characteristics of microplastics in tap water and two major water sources in Qingdao, China. The results showed that the microplastic abundance in tap water and water sources was from 0.3 to 1.6 items/L and 0.2 to 0.7 items/L, respectively. The microplastic size ranged from 10 to 5000 μm and were black, gray, blue, and transparent. Fiber, as the dominant shape, contributed up to 99.2% of the identified microplastics. The most common polymers were rayon (48.9%) followed by polyethylene terephthalate (PET) (29.6%). Microplastics in tap water and water sources differed in size and polymer types but showed specific correlations. The analysis of Laoshan Reservoir and Jihongtan Reservoir indicated that human activities and atmospheric deposition contributed to the microplastics in the water sources. The potential risk of the microplastics was assessed by the potential risk index of the polymers. The results showed that water treatment reduced the potential risks of microplastics in tap water.