Nonylphenol and its ethoxylates are on the second priority substances list (PSL2) to determine if they are ‘toxic’ as defined under the Canadian Environmental Protection Act. This study addresses the need for data on their occurrence in surface waters and sediments in Canada. Samples of surface water from 35 sites in the Laurentian Great Lakes basin and the upper St. Lawrence River were analyzed for 4-nonylphenol (4-NP), nonylphenol ethoxylate (NPE 1 ), nonylphenol diethoxylate (NPE 2 ) and 4- tert -octylphenol (4- t -OP). Bottom sediment samples from nine heavily industrialized sites were also analyzed for the same chemicals. Measurable quantities of 4-NP and 4- t -OP were found in 24% of all water samples. Values ranged from <0.010 μg to 0.92 μg/l and from <0.005 to 0.084 μg/l for 4-NP and 4- t -OP, respectively. Of the surface water samples, 58% were found to contain NPE 1 and 32% contained NPE 2 . Their concentrations ranged from <0.020 to 7.8 μg/l for NPE 1 and from <0.020 to 10 μg/l for NPE 2 . All nine sediment samples contained 4-nonylphenol, with values ranging from 0.17 to 72 μg/g (dry weight). The majority of sediment samples also contained detectable levels of the other contaminants. A total of 66% of sediments had detectable amounts of NPE 1 and concentrations ranged from <0.015 to 38 μg/g (dry weight), 66% of sediments had detectable amounts of NPE 2 and values ranged from <0.015 to 6.0 μg/g (dry weight) and 89% of sediment samples had detectable amounts of 4- t -OP and values ranged from <0.010 to 1.8 μg/g (dry weight). The highest concentrations of the analytes found are well below acute toxicity thresholds, but in some cases there may be cause for concern with regard to long-term effects on reproductive health of fish.
Science of the Total Environment – Elsevier
Published: Jan 30, 1997
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera