8 Jun 2018 EPA states that its assessment of long-chain NPEs “is that, depending on chain length, they are low to moderately toxic to aquatic organisms but
Nonyl-phenol ethoxylates have much narrower homologue distributions than alcohol ethoxylates (ICI datasheet for Synperonic NP surfactants). 880 million pounds (4 mio metric tonnes) of alkyl phenol ethoxylates are used annually throughout the world. 80-85% are sold as nonylphenol ethoxylate (NPE), over 15% as octylphenol ethoxylate, and 1% each as
From data obtained by Environment Canada, an estimated 18,000 tonnes of NP and NPEs were used in Canada in 1998. Since they are highly persistent and hydrophobic, they accumulate mostly on sludge.In this study using Anaerobic Toxicity Assay (ATA) tests, the toxicity of a model nonylphenol compound, nonylphenol diethoxylate (NP2EO), for anaerobic digestion of sludge was determined. purpose cleaning products containing nonylphenol ethoxylates. As NPE clearly requires replacement, mainly due to the environmental toxicity of the primary degradate (nonylphenol, or NP), the objective of this AA is to identify an appropriate alternative chemical(s) as a substitute surfactant. NP is persistent in the aquatic environment, moderately bioaccumulative, and extremely toxic to aquatic organisms.
Concerns first emerged in 1983–84 when Giger and co-workers from Switzerland established that nonylphenol ethoxylates and products of degradation were more toxic to aquatic life than their precursors (Giger et al., 1984). Intergenerational toxicity of nonylphenol ethoxylate (NP-9) in Caenorhabditis elegans. De la Parra-Guerra A(1), Stürzenbaum S(2), Olivero-Verbel J(3). Author information: (1)Environmental and Computational Chemistry Group, University of Cartagena, Cartagena, Colombia. Nonyl-phenol ethoxylates have much narrower homologue distributions than alcohol ethoxylates (ICI datasheet for Synperonic NP surfactants). 880 million pounds (4 mio metric tonnes) of alkyl phenol ethoxylates are used annually throughout the world. 80-85% are sold as nonylphenol ethoxylate (NPE), over 15% as octylphenol ethoxylate, and 1% each as Toxicity studies on nonylphenol ethoxylates (isomers), such as NP-9, are less abundant than those based on NP. However, although this family of compounds has diverse derivatives, including short and long chain isomers, many of them display high estrogenicity, even greater than that observed for NP, sometimes several orders of magnitude higher Nonylphenol, ethoxylated.
NPEC nonylphenol ether-carboxylate OECD Organization for Economic Cooperation and Development OPE octylphenol ethoxylate OSPAR Oslo and Paris Commissions P persistence PAA Preliminary Alternatives Assessment PBT persistent, bioaccumulative, and toxic PEG polyethylene glycol ppm parts per million R reproductive toxicity
2008-10-01 · Nonylphenol is a toxic xenobiotic compound classified as an endocrine disrupter capable of interfering with the hormonal system of numerous organisms. It originates principally from the degradation of nonylphenol ethoxylates which are widely used as industrial surfactants. Nonylphenol and its ethoxylates.
Nonylphenol (NP) (CAS number, 104-40-05) is a product of industrial synthesis formed during the alkylation process of phenols (ring structure in Figure 1). The addition of ethoxyl groups to the parent compound produces nonylphenol ethoxylates (NPE), which are used to produce industrial surfactants.
There are limited The most commonly used APEs in the market are the nonylphenol ethoxylates ( NPEs) and octylphenol ethoxylates (OPEs). As a result of their widespread use and Alkylphenols and their ethoxylates (APEs) are a family of chemicals used mainly has begun to address APEs by proposing nonylphenol ethoxylates in laundry 9 Nov 2017 Under aerobic and anaerobic treatment conditions, biodegradation to more toxic (and estrogenic) metabolites occurs. These products are NP, 2 Sep 2010 Health and the Environment from Toxic Chemicals in Toys and Children's Products [38 MRSA. §§1691 through 1699-B]. The goal of the law as 23 Mar 2018 NP and NPEs are toxic and estrogenic. The term “nonylphenol ethoxylates” refers to a large group of chemicals that vary in chemical structure 26 Jan 2018 Abstract: An experiment was carried out to explore acute and chronic toxicity of nonylphenol ethoxylates (NP40EO) to Daphnia magna and the (1-2, 19) Based on this data, nearly 77 million pounds of NPE-based cleaning agents entered U.S. waterways in. 2004.
Widely recognized for extreme aquatic toxicity to fish and wildlife, NPEs and NP may also threaten the health of the developing fetus and young children. Intergenerational toxicity of nonylphenol ethoxylate (NP-9) in Caenorhabditis elegans. De la Parra-Guerra A(1), Stürzenbaum S(2), Olivero-Verbel J(3).
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As NPE clearly requires replacement, mainly due to the environmental toxicity While nonylphenol ethoxylate (NPE) surfactants in detergents have seen little Very high acute (short-term) aquatic toxicity; high chronic (long-term) aquatic Source of toxicity value: Determined by MDH in 2015. Point of Nonylphenol, Nonylphenol Ethoxylates, Tricresyl, Phosphates and Benzoic Acid. Retrieved 2019年10月22日 Among the most used chemicals in the world are nonionic surfactants. One of these environmental pollutants is nonylphenol ethoxylate (NP-9), Top scoring factors: Evidence of acute aquatic toxicity; digestive system effects; nervous system effects. Nonylphenol ethoxylate can be found in 1 product.
the TSCA (Toxic Substances Control Act) and yet only 200 of the toxins were of our fish and Nonylphenol ethoxylates (NPE's), which have been banned in
PBT: Persistent, Bioaccumulative and Toxic Denna produkt innehåller en SVHC kemiska, nonylphenol ethoxylate, på 0,1 eller högre. Denna produkt innehåller en SVHC kemiska, nonylphenol ethoxylate, på 0,1 eller högre.
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Nonyl-phenol ethoxylates have much narrower homologue distributions than alcohol ethoxylates (ICI datasheet for Synperonic NP surfactants). 880 million pounds (4 mio metric tonnes) of alkyl phenol ethoxylates are used annually throughout the world. 80-85% are sold as nonylphenol ethoxylate (NPE), over 15% as octylphenol ethoxylate, and 1% each as
Acute toxicity. Abstract: Nonylphenol ethoxylate-6 (NP6EO) is widely used in industrial Handle in accordance with good industrial hygiene and safety practice. Components.
Nonylphenol and its ethoxylates (NP and NPEs) have been used for more than 40 years as detergents, emulsifiers, wetting agents and dispersing agents. From data obtained by Environment Canada, an estimated 18,000 tonnes of NP and NPEs were used in Canada in 1998.
NPEs (nonylphenol ethoxylates) break down in the environment into nonylphenol (NP), one of the most notorious examples of persistent, bioaccumulative and toxic chemicals (PBTs). Widely recognized for extreme aquatic toxicity to fish and wildlife, NPEs and NP may also threaten the health of the developing fetus and young children. Intergenerational toxicity of nonylphenol ethoxylate (NP-9) in Caenorhabditis elegans. De la Parra-Guerra A(1), Stürzenbaum S(2), Olivero-Verbel J(3).
CCME describes Toxic Equivalent Factors from Environment Canada for NPnEO (1≤n≤8) We simulated the formation of halogenated by-products of biodegradation products of a nonionic surfactant, nonylphenol ethoxylate (NPE), and evaluated the toxicity of these by-products.