Risk assessments have two components: an assessment of the potential environmental concentrations of a chemical, and an assessment of the environmental effects of the chemical. The fate of detergent surfactants has been well characterized during wastewater treatment. They are predominantly removed due to biodegradation, while a fraction is removed via sorption to sludge solids and may thus end up in the terrestrial environment. It is assumed that sorption to sludge solids and soil components will reduce bioavailability to terrestrial organisms. A review of the literature indicates that toxicity data for invertebrates and numerous higher plants are available for the anionic surfactant linear alkyl benzene sulfonate (LAS). Different modes of exposure (hydroponic medium, addition to irrigation water, spiked soil, spiked sludge) and types of soil significantly impact toxicity test results and must be taken into account when performing a risk assessment. The extrapolation of aquatic toxicity data to derive terrestrial PNECs (predicted no effect concentrations) will be discussed. The development of practical chronic testing, such as the rapid cycling Brassica plant life-cycle test, will be discussed in the context of the various tiered testing approaches currently being proposed by different regulatory agencies.
Science of the Total Environment – Elsevier
Published: Jun 21, 1996
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