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Pharmaceuticals and personal care products in passive samplers at seven coastal sites off West Maui, Hawaiʻi:

September 27, 2022

Passive membrane samplers—semipermeable membrane devices and polar organic chemical integrative samplers—were deployed for 22 continuous days at 7 sites along the West Maui, Hawaiʻi, coastline in February and March 2017 to assess organic contaminants at shallow coral reef ecosystems from diverse upstream inputs. The distribution of organic compounds observed at these coastal sites showed considerable variability; high concentrations of microbially sourced organic compounds observed at all sites, with pentadecane as the predominant normal alkane, showed the relative importance of marine and microbial organic matter to the coastal carbon pool. Pharmaceuticals and personal care products, as well as flame retardants, were also detected at all sites. Of the seven sites sampled, the Kahekili Beach Park site had the highest number of unique contaminants and the Honokōwai Stream site had the highest concentrations of compounds. Two individual compounds, a flame retardant and a fragrance, were ubiquitous across the studied West Maui reefs, including at the least-developed site. A direct correlation to upstream land-use practices or legacy agricultural inputs was not readily observed since polychlorinated biphenyls, pesticides, herbicides, or insecticides were not detected. Results provide a snapshot of relative contaminant abundances as well as inputs to select nearshore environments along the West Maui coastline captured during the 2017 wet season, which was drier than expected. These data can be useful for understanding the range of stressors potentially affecting nearshore ecosystems, such as groundwater inputs and watershed runoff.

Publication Year 2022
Title Pharmaceuticals and personal care products in passive samplers at seven coastal sites off West Maui, Hawaiʻi:
DOI 10.3133/ofr20221065
Authors Pamela L. Campbell, Nancy G. Prouty, Curt D. Storlazzi
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Open-File Report
Series Number 2022-1065
Index ID ofr20221065
Record Source USGS Publications Warehouse
USGS Organization Pacific Coastal and Marine Science Center