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Nonylphenol ethoxylate containing products used in the public domain include: non- adverse health effects on the health of a species due to organ toxicity. 3. 3 Jun 2014 The aim of this paper was to examine the sublethal toxic effects of nonylphenol ethoxylate (NP10EO), its primary degradation product As a degradation product of ethoxylated alkylphenols, nonylphenol presents a higher degree of reactivity than its precursor. Due to its harmful effects on the EPA is proposing to add a NPEs category to the list of toxic chemicals subject to 27 Nov 2016 Nonylphenol Ethoxylates (NPE) are used in a wide variety of industrial applications and consumer products. NPEs, though less toxic than NP, 20 Jun 2018 The agency proposed to add short-chain NPEs to the EPCRA toxic chemical list because they are believed to be highly toxic to aquatic organisms 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 The freshwater standards are based on toxicity of NP to fathead minnow, the incomplete biodegradation of nonylphenol ethoxylate (NPE) surfactants during 8 Jun 2018 Short-chain NPEs, which consist of a nonylphenol with one or two ethoxylene oxide groups attached, are highly toxic to water-dwelling organisms Get the Facts: NPEs (nonylphenol ethoxylates) · Hormone (endocrine) disruption · Extreme aquatic toxicity · Skin and eye irritation · Reproductive harm · Birth defects 2004.
The objective of this work was to determine the toxicity of NP and NP-9 in Caenorhabditis elegans. Wild-type L4 larvae were exposed to different concentrations of the surfactants to measure functional endpoints. 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.
Acute toxicity. Abstract: Nonylphenol ethoxylate-6 (NP6EO) is widely used in industrial 2004.
Nonylphenol, ethoxylated 10-EO 9016-45-9 - Substance
Acute toxicity - oral Reason for no classification: data conclusive but not sufficient for classification Acute toxicity - dermal Reason for no classification: data lacking Acute toxicity - inhalation Reason for no classification: data lacking Skin corrosion / irritation Hazard category: Skin Irrit. 2 Hazard statement: H315: Causes skin irritation. Acute toxicity tests using nonylphenol (NP), nonylphenol monoethoxylate (NP1EO), and nonylphenol diethoxylate (NP2EO) were conducted using the single chemicals and as binary and tertiary mixtures. These compounds frequently coexist in surface waters as the result of discharges from wastewater treatment plants that are inefficient at removing nonylphenolic compounds.
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NP has also been shown to exhibit estrogenic properties in in vitro and in vivo assays. NP’s main use is in the manufacture of NPEs. 2020-04-11 · Electronic address: joliverov@unicartagena.edu.co.
of nonylphenol ethoxylates produces more toxic nonylphenol (NP) (Hano et al., 2009). Such compound is also estrogenic both in vitro and vivo assays (Folmar et al., 2002). Nonylphenol is not a single chemical compound but is used to refer to a family of compounds all of which have a central aromatic or benzene ring and
Nonylphenol ethoxylates (NPEs) are endocrine-disrupting chemicals that mimic estrogen and are linked to both hormonal problems and cancer.
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Toxicity Nonylphenol (NP), a breakdown product of NPEs, has been shown to mimic the action of the female hormone oestrogen.
Materials and methods.
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Given the few available risk assessments on NP and its parent compounds it was not possible to compare the integrated assessment with one ecological risk assessment report with one human health risk assessment report. Nonylphenol is highly toxic to aquatic organisms and has been found in natural waters. Because of nonylphenol's toxicity, chemical properties, and widespread use to make other chemicals, concerns have been raised over the potential risks to aquatic organisms from exposure to nonylphenol. 4-Nonylphenol, branched and linear, ethoxylated substances with a linear and/or branched alkyl chain with a carbon number of 9 covalently bound in position 4 to phenol, ethoxylated covering UVCB- and well-defined substances, polymers and homologues, which include any of the individual isomers and/or combinations thereof Nonylphenol ethoxylates (NPEs) are endocrine-disrupting chemicals that mimic estrogen and are linked to both hormonal problems and cancer. According to the Environmental Protection Agency (EPA) , NPEs have been associated with reproductive and developmental effects in lab studies on rodents and are highly toxic to aquatic life. Acute toxicity tests using nonylphenol (NP), nonylphenol monoethoxylate (NP1EO), and nonylphenol diethoxylate (NP2EO) were conducted using the single chemicals and as binary and tertiary mixtures.
Nonylphenol, ethoxylated 10-EO 9016-45-9 - Substance
Every brand contained toxic chemicals – perfluorated chemicals (PFCs), phthalates, nonylphenol, nonylphenol ethoxylate (NPE), and cadmium.
Nonylphenol photodegrades in sunlight, but its half-life in sediment is estimated to be more than 60 years. toxicity tests were collected from the littoral area of Sancti Petri (Gulf of Cadiz, southwest of Iberian Peninsula). Main physico-chemical and biological characteristics of the sea water used are summarized in Table I. Assessment of the Biodegradability and Ecotoxicty of a Nonylphenol Ethoxylate Surfactant in Littoral Waters NP’s acute (oral and dermal) toxicity is low. NP is highly irritating and corrosive to the skin and eye, but does not have significant skin sensitizing potential. 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.