Alkylphenol ethoxylates in the environment

Alkylphenol ethoxylates in the environment A comprehensive monitoring study, sponsored by the Chemical Manufacturers Association and designed in cooperation with the Environmental Protection Agency (EPA), measured the levels of nonylphenol (NP) and its ethoxylates (NPE) in 30 rivers. The sites, all receiving municipal or industrial wastewater, were selected at random from EPA’s United States river reach database by a statistical procedure. Water column and bottom sediment samples were collected along a perpendicular transect at each site. All samples were assayed for NP and NPE 1 , and the higher ethoxylates (NPE 2 to NPE 17 ) were determined in the water samples. Analysis was by high-performance liquid chromatography (HPLC) with fluorescence detection of microgram quantities of NPE obtained by extractive steam distillation (NP and NPE 1 ) or a dualcolumn extraction procedure (NPE 2 to NPE 17 ). Sample collection and analytical procedures were validated according to rigorous EPA guidelines, and quality assurance standards were met throughout the study. NP and NPE concentrations in river water were mostly (60 to 75% of the samples) below their detection limits (about 0.1 ppb for NP, NPE 1 , and NPE 2 ; 1.6 ppb for NPE 3–17 ). The highest levels found were about 1 ppb for NP, NPE 1 , and NPE 2 , 15 ppb for NPE 3–17 . A majority of sediment samples contained detectable amounts of NP and NPE 1 , ranging up to 3000 ppb for NP and 170 ppb for NPE 1 . Sediment interstitial water concentrations of NP were estimated to be similar to concentrations in the water column. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of the American Oil Chemists' Society Springer Journals

Loading next page...
 
/lp/springer-journals/alkylphenol-ethoxylates-in-the-environment-Qeow50Nv5e
Publisher
Springer Journals
Copyright
Copyright © 1992 by American Oil Chemists' Society
Subject
Chemistry; Chemistry/Food Science, general; Analytical Chemistry; Biotechnology; Industrial Chemistry/Chemical Engineering; Biomaterials; Agriculture
ISSN
0003-021X
eISSN
1558-9331
DOI
10.1007/BF02635812
Publisher site
See Article on Publisher Site

Abstract

A comprehensive monitoring study, sponsored by the Chemical Manufacturers Association and designed in cooperation with the Environmental Protection Agency (EPA), measured the levels of nonylphenol (NP) and its ethoxylates (NPE) in 30 rivers. The sites, all receiving municipal or industrial wastewater, were selected at random from EPA’s United States river reach database by a statistical procedure. Water column and bottom sediment samples were collected along a perpendicular transect at each site. All samples were assayed for NP and NPE 1 , and the higher ethoxylates (NPE 2 to NPE 17 ) were determined in the water samples. Analysis was by high-performance liquid chromatography (HPLC) with fluorescence detection of microgram quantities of NPE obtained by extractive steam distillation (NP and NPE 1 ) or a dualcolumn extraction procedure (NPE 2 to NPE 17 ). Sample collection and analytical procedures were validated according to rigorous EPA guidelines, and quality assurance standards were met throughout the study. NP and NPE concentrations in river water were mostly (60 to 75% of the samples) below their detection limits (about 0.1 ppb for NP, NPE 1 , and NPE 2 ; 1.6 ppb for NPE 3–17 ). The highest levels found were about 1 ppb for NP, NPE 1 , and NPE 2 , 15 ppb for NPE 3–17 . A majority of sediment samples contained detectable amounts of NP and NPE 1 , ranging up to 3000 ppb for NP and 170 ppb for NPE 1 . Sediment interstitial water concentrations of NP were estimated to be similar to concentrations in the water column.

Journal

Journal of the American Oil Chemists' SocietySpringer Journals

Published: Jul 1, 1992

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

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

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

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.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create folders to
organize your research

Export folders, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off