Seasonal variations of selected herbicides and related metabolites in water, sediment, seaweed and clams in the Sacca di Goro coastal lagoon (Northern Adriatic)

Carafa, Roberta; Jan, Wollgast; Canuti, Elisabetta; Ligthart, J.; Dueri, Sibylle; Hanke, Georg; Eisenreich, Steven J.; Viaroli, Pierluigi; Zaldı́var, J.M.

doi:10.1016/j.chemosphere.2007.05.060

Cited by 105 publications

(46 citation statements)

References 33 publications

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“…It was found that concentrations of these herbicides in aquatic environments followed a clear seasonal pattern, with higher concentrations being detected during spring periods (Carafa et al, 2007). Studying the effects of temperature increase (from 15 • C to, 25 • C) on cellular responses of the marine diatom Skeletonema marinoi to environmental to sub-lethal levels (1, 5, 10, 20, and 30 µg l −1 ) of TBA, Fiori and Pistocchi (2014), observed that this species was quite resistant to TBA exposure at 15 • C. However, enhanced temperature increased the algal sensitivity to this herbicide.…”

Section: Case Of Psii Inhibitors and Temperaturementioning

confidence: 99%

“…In several countries where atrazine was banned for agricultural usage, triazine (PSII-inhibitors), such as terbuthylazine (TBA) and simazine (SIM), has been used as substitutes, and significant concentrations (from 0.57 to 694.32 ng l −1 and 1.45 ng l −1 to 25.96 ng l −1 for TBA and SIM, respectively) of these herbicides and their byproducts were observed in aquatic environments (Carafa et al, 2007). It was found that concentrations of these herbicides in aquatic environments followed a clear seasonal pattern, with higher concentrations being detected during spring periods (Carafa et al, 2007).…”

Section: Case Of Psii Inhibitors and Temperaturementioning

confidence: 99%

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Temperature and Light Modulation of Herbicide Toxicity on Algal and Cyanobacterial Physiology

Gomes

Juneau

2017

Front. Environ. Sci.

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HIGHLIGHTS• We reviewed the interaction between light, temperature and herbicides on algal and cyanobacterial physiology.• Temperature is the main factor affecting herbicide toxicity to algae and cyanobacteria.• Changes in light environment may modulate the effects of photosynthesis-targeting herbicides.Important interactions between climatic parameters and herbicide toxicity have been discussed in the literature. As climate changes are expected to influence the growth conditions of aquatic photosynthetic organisms over the next century by modifying the physicochemical parameters of the environment (such as temperature and incident light characteristics), the following questions arise: How will variations in climatic conditions influence herbicide toxicity in algae and cyanobacteria? Are these coupled effects on aquatic photosynthetic organism physiology antagonistic, additive, or synergistic?We discuss here the physiological responses of algae and cyanobacteria to the combined effects of environmental changes (temperature and light) and herbicide exposure. Both temperature and light are proposed to influence herbicide toxicity through acclimation processes that are mainly related to cell size and photosynthesis. Algal and cyanobacterial responses to interactions between light, temperature, and herbicides are species-specific, making it difficult today to establish a single model of how climate changes will affect toxicity of herbicides. Acclimation processes could assure the maintenance of primary production but total biodiversity should decrease in communities exposed to herbicides under changing temperature and light conditions. The inclusion of considerations on the impacts of environmental changes on toxicity of herbicides in water quality guidelines directed toward protecting aquatic life is now urgently needed.Keywords: environment, toxicity, hazardous, pollutants, algae, cyanobacteria Gomes and JuneauHerbicides/Climate Changes on PhytoplanktonGraphical Abstract | Changes in temperature and light conditions in water systems over the next century will drive physiological responses of algal and cyanobacterial community to herbicides, by antagonistic, additive, or synergic effects with these pollutants.

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Section: Case Of Psii Inhibitors and Temperaturementioning

confidence: 99%

Section: Case Of Psii Inhibitors and Temperaturementioning

confidence: 99%

Temperature and Light Modulation of Herbicide Toxicity on Algal and Cyanobacterial Physiology

Gomes

Juneau

2017

Front. Environ. Sci.

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“…In rural ponds of Ontario, Canada, atrazine was found in sediment with concentrations as high as 6.4 mg/kg (compared with 17 μg/L in water) after accidental spills of atrazine during 1971 to 1985. 20 Atrazine, DEA, DIA, simazine, or alachlor were detected in sediments of an agricultural drainage ditch in the Mississippi Delta, 21 wetlands of Texas, New Mexico, and Oklahoma, 22 a small eutrophic lake in Switzerland, 23 managed realignment sites in England, 24 the German Bight in the North Sea, 25 Ebro delta of Tarragona in Spain, 26 coastal lagoon of Northern Adriatic in Italy, 27 and Songhua River Basin in northeastern China. 28 However, reports on herbicides in the sediments of the Great Lakes are notably sparse or nonexistent.…”

Section: ■ Introductionmentioning

confidence: 99%

Occurrence of Atrazine and Related Compounds in Sediments of Upper Great Lakes

Guo

Ranasinghe

et al. 2016

Environ. Sci. Technol.

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Surface grab and core sediment samples were collected from Lakes Michigan, Superior, and Huron from 2010 to 2012, and concentrations of herbicides atrazine, simazine, and alachlor, as well as desethylatrazine (DEA), were determined. Concentrations of atrazine in surface grabs ranged from 0.01 to 1.7 ng/g dry weight and are significantly higher in the southern basin of Lake Michigan (latitude <44°) than other parts of the three lakes. The highest concentration of alachlor was found in sediments of Saginaw Bay in Lake Huron. The inventory and net fluxes of these herbicides were found to decline exponentially from the south to the north. The concentration ratio of DEA to atrazine (DEA/ATZ) increased with latitude, suggesting degradation of atrazine to DEA during atmospheric transport. DEA/ATZ also increased with sediment depth in the sediment cores. Diffusion of deposited herbicides from the upper sediment into deeper sediments has occurred, on the basis of the observed patterns of concentrations in dated sediment cores. Concentrations of atrazine in pore water were estimated and were higher than those reported for the bulk waters, suggesting the occurrence of solid-phase deposition of atrazine through the water column and that contaminated sediments act as a source releasing atrazine to the overlying water. ■ INTRODUCTIONCurrent agricultural practices often involve extensive use of herbicides. 1 Atrazine [1-chloro-3-ethylamino-5-isopropylamino-2,4,6-triazine], simazine [6-chloro-N,N′-diethyl-1,3,5-triazine-2,4-diamine], and alachlor [2-chloro-2,6-diethyl-N-(methoxymethyl)acetanilide] are among those used in the United States. Atrazine and simazine are both triazines and were initially registered as herbicides in 1958 and 1956, respectively. 2,3 Alachlor, a chloroacetanilide, was first registered in 1969. 4 From 1992 to 2011, reported annual usages on crops were 32 000−36 000 tons for atrazine, 1814−2722 tons for simazine, and 454−22 680 tons for alachlor. 5 These herbicides are primarily used in the "Corn Belt" near the Great Lakes of North America, including the states of Iowa, Illinois, and Indiana and parts of others. 1,5 Their use has been banned by the European Union because of ubiquitous and unpreventable water contamination. Atrazine is classified as a Restricted Use Pesticide in the United States. 6 According to the U.S. Environmental Protection Agency (EPA), atrazine is an endocrine disruptor, 6 simazine may have reproductive or developmental toxicity, 7 and alachlor was classified as a "likely" human carcinogen at high dose. 4 Compared with organochlorine pesticides, atrazine and related compounds are more soluble in water. A major concern is their potential to leach from soils to surface and ground waters that are used as sources of drinking water; 3 thus, most monitoring efforts to date have been conducted for water. Atrazine was found in waters of all five Laurentian Great Lakes. 8−10 In rivers of the Midwestern U.S., elevated concentrations of atrazine, simazine, and alachlor were fou...

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“…Thus, understanding their role in the distribution and flux of nutrients in aquatic systems is critical to understanding the functional role of communities and enabling their effective environmental management. Due to the high complexity, dynamic nature, and non-linearity of both spatial and temporal pollution patterns (Carafa et al, 2007), only biological parameters such as measures of abundance (coverage, density, biomass), diversity (species richness, Shannon index), and pollution tolerance (biological monitoring working parties and biological monitoring water quality score systems) (Camargo et al, 2011) have been reported. However, these parameters alone do not sufficiently address ecological integrity or changes in water quality.…”

Section: Introductionmentioning

confidence: 99%

Modeling macrozooplankton and water quality relationships after wetland construction in the Wenyuhe River Basin, China

Ren

Zeng

et al. 2013

Ecological Modelling

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Seasonal variations of selected herbicides and related metabolites in water, sediment, seaweed and clams in the Sacca di Goro coastal lagoon (Northern Adriatic)

Cited by 105 publications

References 33 publications

Temperature and Light Modulation of Herbicide Toxicity on Algal and Cyanobacterial Physiology

Temperature and Light Modulation of Herbicide Toxicity on Algal and Cyanobacterial Physiology

Occurrence of Atrazine and Related Compounds in Sediments of Upper Great Lakes

Modeling macrozooplankton and water quality relationships after wetland construction in the Wenyuhe River Basin, China

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