Stormwater-related transport of the insecticides bifenthrin, fipronil, imidacloprid, and chlorpyrifos into a tidal wetland, San Francisco Bay, California

Weston, Donald P.; Chen, Da; Lydy, Michael J.

doi:10.1016/j.scitotenv.2015.04.095

Cited by 79 publications

(66 citation statements)

References 44 publications

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“…Waterborne levels of clothianidin and thiamethoxam residues were correlated to the percentage of crop land in the regions surveyed, whereas imidacloprid levels were related to the percentage of urban area within the basin (Hladik and Kolpin 2016). In five urban creeks that discharge into a brackish marsh area of San Francisco Bay, peak concentrations of insecticides were 9.9 ng/L (bifenthrin), 27.4 ng/L (fipronil), 11.9 ng/L (fipronil sulfone), 1462 ng/L (imidacloprid), and 4.0 ng/L (chlorpyrifos) (Weston et al 2015). However, these insecticide residues enter the channels of the marsh and are diluted to the point of not showing acute toxicity to standard test species (Hyalella azteca and Chironomus dilutus).…”

Section: Water and Sedimentsmentioning

confidence: 99%

An update of the Worldwide Integrated Assessment (WIA) on systemic insecticides. Part 1: new molecules, metabolism, fate, and transport

Giorio

Safer

Sánchez‐Bayo

et al. 2017

Environ Sci Pollut Res

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With the exponential number of published data on neonicotinoids and fipronil during the last decade, an updated review of literature has been conducted in three parts. The present part focuses on gaps of knowledge that have been addressed after publication of the Worldwide Integrated Assessment (WIA) on systemic insecticides in 2015. More specifically, new data on the mode of action and metabolism of neonicotinoids and fipronil, and their toxicity to invertebrates and vertebrates, were obtained. We included the newly detected synergistic effects and/or interactions of these systemic insecticides with other insecticides, fungicides, herbicides, adjuvants, honeybee viruses, and parasites of honeybees. New studies have also investigated the contamination of all environmental compartments (air and dust, soil, water, sediments, and plants) as well as bees and apicultural products, food and beverages, and the exposure of invertebrates and vertebrates to such contaminants. Finally, we review new publications on remediation of neonicotinoids and fipronil, especially in water systems. Conclusions of the previous WIA in 2015 are reinforced; neonicotinoids and fipronil represent a major threat worldwide for biodiversity, ecosystems, and all the services the latter provide.

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Section: Water and Sedimentsmentioning

confidence: 99%

An update of the Worldwide Integrated Assessment (WIA) on systemic insecticides. Part 1: new molecules, metabolism, fate, and transport

Giorio

Safer

Sánchez‐Bayo

et al. 2017

Environ Sci Pollut Res

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“…Although identification of chemical classes responsible for these effects is limited, because of the complexities resulting from mixtures of multiple chemicals, several studies (see Table 1) have highlighted pyrethroid pesticides as responsible for toxicity, endocrine disruption, and neurological impairments in both fish and their prey (Brander et al 2013(Brander et al , 2016bHasenbein et al 2015c;Jeffries et al 2015b;Weston et al 2015a). …”

Section: Evidence Of Effects On Surrogate Species Detected In Delta Wmentioning

confidence: 99%

“…PFOS has been detected globally, including in San Francisco Bay birds and seals (2016 in-person conversation between M. Sedlak and J. Davis, unreferenced, see "Notes"). Bird eggs collected in the southern portion of the bay in 2006 and 2009 contained levels of PFOS above a threshold (1 μg g -1 wet weight) that affects offspring 14 VOLUME 14, ISSUE 4, ARTICLE 5 imidacloprid), yet studies continue to detect OPs in Bay-Delta waters (Ensminger et al 2013;Weston et al 2015a). …”

Section: Persistent Organic Pollutantsmentioning

confidence: 99%

Contaminant Effects on California Bay–Delta Species and Human Health

Fong¹,

Louie²,

Werner³

et al. 2016

SFEWS

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“…Although most concentrations detected are less than 1 mg/L, there are nonetheless concentrations detected in the field that are expected to cause acute toxicity [1]. Moreover, the prevalence of pyrethroids was reported in urban and agricultural watersheds in California, USA, at levels that were acutely toxic to the aquatic organisms [3,4]. Moreover, the prevalence of pyrethroids was reported in urban and agricultural watersheds in California, USA, at levels that were acutely toxic to the aquatic organisms [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…Bifenthrin is a widely used pyrethroid that has been frequently detected in surface water [2][3][4]. The commercial formulation of BF is made of cis-BF that contains a pair of enantiomers, 1S-cis-BF and 1R-cis-BF.…”

Section: Introductionmentioning

confidence: 99%

Effects of metals on enantioselective toxicity and biotransformation of cis‐bifenthrin in zebrafish

Yue

Huang

et al. 2017

Enviro Toxic and Chemistry

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Co-occurrence of pyrethroids and metals in watersheds previously has been reported to pose great risk to aquatic species. Pyrethroids are a class of chiral insecticides that have been shown to have enantioselective toxicity and biotransformation. However, the influence of metals on enantioselectivity of pyrethroids has not yet been evaluated. In the present study, the effects of cadmium (Cd), copper (Cu), and lead (Pb) on the enantioselective toxicity and metabolism of cis-bifenthrin (cis-BF) were investigated in zebrafish at environmentally relevant concentrations. The addition of Cd, Cu, or Pb significantly increased the mortality of zebrafish in racemate and R-enantiomer of cis-BF-treated groups. In rac-cis-BF- or 1R-cis-BF-treated groups, the addition of Cd, Cu, or Pb caused a decrease in enantiomeric fraction (EF) and an increased ratio of R-enantiomer residues in zebrafish. In 1S-cis-BF-treated groups, coexposure to Cd led to a lower EF and decreased residue levels of S-enantiomer. In addition, coexposure to the 3 metals resulted in different biodegradation characteristics of each enantiomer accompanied with differential changes in the expression of cytochrome P450 (CYP)1, CYP2, and CYP3 genes, which might be responsible for the enantioselective biodegradation of cis-BF in zebrafish. These results suggest that the influence of coexistent metals should be considered in the ecological risk assessment of chiral pyrethroids in aquatic environments. Environ Toxicol Chem 2017;36:2139-2146. © 2017 SETAC.

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Stormwater-related transport of the insecticides bifenthrin, fipronil, imidacloprid, and chlorpyrifos into a tidal wetland, San Francisco Bay, California

Cited by 79 publications

References 44 publications

An update of the Worldwide Integrated Assessment (WIA) on systemic insecticides. Part 1: new molecules, metabolism, fate, and transport

An update of the Worldwide Integrated Assessment (WIA) on systemic insecticides. Part 1: new molecules, metabolism, fate, and transport

Contaminant Effects on California Bay–Delta Species and Human Health

Effects of metals on enantioselective toxicity and biotransformation of cis‐bifenthrin in zebrafish

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