Microplastic pollution and human risk assessment in Turkish bottled natural and mineral waters


Altunışık A.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, vol.30, no.1, pp.39815-39825, 2023 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 30 Issue: 1
  • Publication Date: 2023
  • Doi Number: 10.1007/s11356-022-25054-6
  • Journal Name: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, IBZ Online, ABI/INFORM, Aerospace Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, EMBASE, Environment Index, Geobase, MEDLINE, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Page Numbers: pp.39815-39825
  • Keywords: Contamination, Estimated daily intake, Microplastic, Plastic bottles, Water, PARTICLES
  • Recep Tayyip Erdoğan University Affiliated: Yes

Abstract

Microplastics (MPs), which arise from the deterioration of larger plastics that are frequently used in daily life and are smaller than 5 mm in size, are found in many environments and can pose a serious threat to human health. Humans ingest these microplastics unintendedly through drinking water. Although plastic pollution has been extensively investigated in a variety of water sources, research on MP contamination in bottled waters is scarce. Hence, in this study, the presence and distribution of MPs were investigated in 150 samples of bottled natural and mineral water brands in Turkiye. Using FTIR stereoscopy and stereomicroscope analysis, MPs were detected in 43 out of the 50 (86%) of these brands. Among the four types of polymers detected, the most abundant type was polyethylene (33%), polypropylene (31%), polyethylene terephthalate (25%), and polyamid (11%). In comparison to natural waters, mineral waters had larger average-sized particles (63.98 +/- 4.06 vs. 104.83 +/- 14.28 mu m) and higher MP concentrations (4.6 +/- 0.5 vs. 12.6 +/- 1.6 particles/L). Although the most dominant shape was found as fiber in natural waters, fragments were more prevalent in mineral waters. The estimated daily intakes (EDI) for adults and children were expected to be 0.019 and 0.42 MP/kg/bw/day, respectively, in natural waters while EDI were 0.009 and 0.04 MP/kg/bw/day, respectively, in mineral waters. The results of the study suggest that the EDI and annual intake (EAI) are negligible when compared to other studies. The baseline data on MP contamination of bottled water provided in the present study may be significant and useful for researchers to have a better understanding of microplastic contamination exposure.