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  1. Article ; Online: Environmentally Relevant Concentrations of the Insecticide Fipronil Modulated Molecular Response in Chironomus riparius.

    Pinto, Thandy Junio da Silva / Martínez-Guitarte, José-Luis / Amaral Dias, Mariana / Montagner, Cassiana Carolina / Espindola, Evaldo Luiz Gaeta / Muñiz-González, Ana-Belén

    Environmental toxicology and chemistry

    2023  Volume 43, Issue 2, Page(s) 405–417

    Abstract: Pesticides employed worldwide for crop protection easily reach aquatic systems, which act as the main reservoirs, and become a risk factor for aquatic fauna. Fipronil is a broad-spectrum insecticide acting on the insect nervous system; however, other ... ...

    Abstract Pesticides employed worldwide for crop protection easily reach aquatic systems, which act as the main reservoirs, and become a risk factor for aquatic fauna. Fipronil is a broad-spectrum insecticide acting on the insect nervous system; however, other effects and systems unrelated to this mechanism could be affected in non-target organisms. Thus, the present study aimed to assess the impact of fipronil on the suborganismal response (gene expression and enzymatic activity) of Chironomus riparius larvae as a model organism in ecotoxicology. To this end, short-term toxicity tests were carried out with fourth-instar larvae exposed to 0.001, 0.01, and 0.1 µg L
    MeSH term(s) Animals ; Insecticides/toxicity ; Chironomidae/genetics ; Acetylcholinesterase/metabolism ; Larva/metabolism ; Water Pollutants, Chemical/toxicity ; Pyrazoles
    Chemical Substances Insecticides ; fipronil (QGH063955F) ; Acetylcholinesterase (EC 3.1.1.7) ; Water Pollutants, Chemical ; Pyrazoles
    Language English
    Publishing date 2023-11-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 46234-2
    ISSN 1552-8618 ; 0730-7268
    ISSN (online) 1552-8618
    ISSN 0730-7268
    DOI 10.1002/etc.5798
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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  2. Article: Quantification and risk assessment of pesticides in southern Brazilian air samples using low-volume sampling and rapid ultrasound-assisted extraction

    Amaral Dias, Mariana / dos Santos, Josafa Magno / Pignati, Wanderlei Antonio / Felix, Erika Pereira

    Environmental science. 2021 Apr. 1, v. 23, no. 3

    2021  

    Abstract: Brazil is one of the largest pesticide consumers in the world. In the last few years, the use of permissive environmental laws and newly authorized pesticide formulations has been enlarged. Thus, the intensive and inadequate use of pesticides may present ...

    Abstract Brazil is one of the largest pesticide consumers in the world. In the last few years, the use of permissive environmental laws and newly authorized pesticide formulations has been enlarged. Thus, the intensive and inadequate use of pesticides may present a risk to human health since these compounds may move between environmental compartments. Outdoor air samples were collected using low-volume samplers at Arapongas city in the state of Paraná, Brazil, between February and November of 2017. Polyurethane foam (PUF) cartridges were presented as a good choice to collect pesticides from atmospheric gas phase samples when compared to styrene-divinylbenzene (XAD-2). Lower limits of quantitation were obtained with PUF cartridges, which allowed a greater number of samples to be quantified in PUF than in XAD-2. Atrazine and trifluralin were quantified for the first time in Brazilian air samples. The levels of concentration ranged between 192–1731 pg m⁻³ (chlorpyrifos), 136–1345 pg m⁻³ (atrazine) and 184–1189 pg m⁻³ (trifluralin). Alachlor has been out of market in Brazil since 2013, and thus it was not detected in any gas phase sample. The highest daily inhalation exposure was observed in infants, 1 × 10⁻⁶ mg kg⁻¹ d⁻¹ for atrazine, chlorpyrifos and trifluralin. None of the analyzed pesticides were associated with a hazardous quotient (HQ) > 1, considering the worst-case scenario for infants, indicating that there is no risk associated with the exposed population. Cancer risk assessment for trifluralin resulted in values below 1 × 10⁻⁶, therefore not indicating any significant risk to human health.
    Keywords air ; alachlor ; at-risk population ; atrazine ; chlorpyrifos ; environmental science ; foams ; human health ; inhalation exposure ; markets ; polyurethanes ; risk ; risk assessment ; trifluralin ; ultrasonic treatment ; Brazil
    Language English
    Dates of publication 2021-0401
    Size p. 467-479.
    Publishing place The Royal Society of Chemistry
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2703814-2
    ISSN 2050-7895 ; 2050-7887
    ISSN (online) 2050-7895
    ISSN 2050-7887
    DOI 10.1039/d0em00467g
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Quantification and risk assessment of pesticides in southern Brazilian air samples using low-volume sampling and rapid ultrasound-assisted extraction.

    Amaral Dias, Mariana / Dos Santos, Josafa Magno / Pignati, Wanderlei Antonio / Felix, Erika Pereira

    Environmental science. Processes & impacts

    2021  Volume 23, Issue 3, Page(s) 467–479

    Abstract: Brazil is one of the largest pesticide consumers in the world. In the last few years, the use of permissive environmental laws and newly authorized pesticide formulations has been enlarged. Thus, the intensive and inadequate use of pesticides may present ...

    Abstract Brazil is one of the largest pesticide consumers in the world. In the last few years, the use of permissive environmental laws and newly authorized pesticide formulations has been enlarged. Thus, the intensive and inadequate use of pesticides may present a risk to human health since these compounds may move between environmental compartments. Outdoor air samples were collected using low-volume samplers at Arapongas city in the state of Paraná, Brazil, between February and November of 2017. Polyurethane foam (PUF) cartridges were presented as a good choice to collect pesticides from atmospheric gas phase samples when compared to styrene-divinylbenzene (XAD-2). Lower limits of quantitation were obtained with PUF cartridges, which allowed a greater number of samples to be quantified in PUF than in XAD-2. Atrazine and trifluralin were quantified for the first time in Brazilian air samples. The levels of concentration ranged between 192-1731 pg m
    MeSH term(s) Air Pollutants/analysis ; Brazil ; Environmental Monitoring ; Humans ; Pesticides/analysis ; Risk Assessment
    Chemical Substances Air Pollutants ; Pesticides
    Language English
    Publishing date 2021-02-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 2703814-2
    ISSN 2050-7895 ; 2050-7887
    ISSN (online) 2050-7895
    ISSN 2050-7887
    DOI 10.1039/d0em00467g
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Occurrence of contaminants of emerging concern and their risks to the Pantanal Sul-Mato-Grossense aquatic biota, Brazil.

    Finoto Viana, Lucilene / do Amaral Crispim, Bruno / Kummrow, Fábio / Alice de Lima, Nathalya / Amaral Dias, Mariana / Carolina Montagner, Cassiana / Henrique Gentil Pereira, Ricardo / de Barros, Adriana / Barufatti, Alexeia

    Chemosphere

    2023  Volume 337, Page(s) 139429

    Abstract: The Aquidauana River is an important ecological corridor in the Pantanal biome. However, the growth of agricultural and urban areas along its banks has contributed to the deterioration of its water quality, consequently putting the aquatic biota at risk. ...

    Abstract The Aquidauana River is an important ecological corridor in the Pantanal biome. However, the growth of agricultural and urban areas along its banks has contributed to the deterioration of its water quality, consequently putting the aquatic biota at risk. Our objectives were to evaluate: 1) the composition of the landscape around six sampling sites located in the Aquidauana River middle section; and 2) the quality of its water by determining limnological parameters, concentrations of contaminants of emerging concern (CECs), and the risks to native aquatic biota. Water samples were collected in November 2020. We observed the conversion of native riparian vegetation to extensive pasture areas and anthropic occupation around the sampling sites. We observed that the chlorophyll and total ammoniacal nitrogen values were above the standards established by Brazilian legislation in all samples. Studies focused on the quantification of CECs in the Pantanal waters are scarce, and to the best of our knowledge, this is the first study that investigated the presence of pharmaceuticals in the Aquidauana River. All 30 CECs analyzed were detected in at least one water sample. Eleven CECs were quantified with eight pesticides (atrazine, diuron, hexazinone, tebuthiuron, azoxystrobin, carbendazim, tebuconazole, and fipronil) and one atrazine degradation product (atrazine-2-hydroxy), caffeine, and bisphenol A. The concentrations of atrazine herbicide observed in the water samples pose risks for protecting aquatic biota (RQs >1). Therefore, the native biota of the Pantanal biome is vulnerable to several types of toxic contaminants observed in the water, which can cause the disappearance of native and endemic species in this region. Establishing a monitoring program, improving sanitation infrastructure, and intensifying good agricultural practices are essential for reducing and controlling the entry of CECs into the Aquidauana River and the Pantanal water system.
    MeSH term(s) Environmental Monitoring ; Brazil ; Atrazine ; Water Pollutants, Chemical/analysis ; Pesticides/analysis ; Rivers/chemistry
    Chemical Substances Atrazine (QJA9M5H4IM) ; Water Pollutants, Chemical ; Pesticides
    Language English
    Publishing date 2023-07-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2023.139429
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2540: Show issues Location:
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  5. Article ; Online: Occurrence of contaminants of emerging concern and their risks to the Pantanal Sul-Mato-Grossense aquatic biota, Brazil

    Finoto Viana, Lucilene / do Amaral Crispim, Bruno / Kummrow, Fábio / Alice de Lima, Nathalya / Amaral Dias, Mariana / Carolina Montagner, Cassiana / Henrique Gentil Pereira, Ricardo / de Barros, Adriana / Barufatti, Alexeia

    Chemosphere. 2023 Oct., v. 337 p.139429-

    2023  

    Abstract: The Aquidauana River is an important ecological corridor in the Pantanal biome. However, the growth of agricultural and urban areas along its banks has contributed to the deterioration of its water quality, consequently putting the aquatic biota at risk. ...

    Abstract The Aquidauana River is an important ecological corridor in the Pantanal biome. However, the growth of agricultural and urban areas along its banks has contributed to the deterioration of its water quality, consequently putting the aquatic biota at risk. Our objectives were to evaluate: 1) the composition of the landscape around six sampling sites located in the Aquidauana River middle section; and 2) the quality of its water by determining limnological parameters, concentrations of contaminants of emerging concern (CECs), and the risks to native aquatic biota. Water samples were collected in November 2020. We observed the conversion of native riparian vegetation to extensive pasture areas and anthropic occupation around the sampling sites. We observed that the chlorophyll and total ammoniacal nitrogen values were above the standards established by Brazilian legislation in all samples. Studies focused on the quantification of CECs in the Pantanal waters are scarce, and to the best of our knowledge, this is the first study that investigated the presence of pharmaceuticals in the Aquidauana River. All 30 CECs analyzed were detected in at least one water sample. Eleven CECs were quantified with eight pesticides (atrazine, diuron, hexazinone, tebuthiuron, azoxystrobin, carbendazim, tebuconazole, and fipronil) and one atrazine degradation product (atrazine-2-hydroxy), caffeine, and bisphenol A. The concentrations of atrazine herbicide observed in the water samples pose risks for protecting aquatic biota (RQs >1). Therefore, the native biota of the Pantanal biome is vulnerable to several types of toxic contaminants observed in the water, which can cause the disappearance of native and endemic species in this region. Establishing a monitoring program, improving sanitation infrastructure, and intensifying good agricultural practices are essential for reducing and controlling the entry of CECs into the Aquidauana River and the Pantanal water system.
    Keywords ammonium nitrogen ; atrazine ; azoxystrobin ; bisphenol A ; caffeine ; carbendazim ; chlorophyll ; diuron ; ecosystems ; fipronil ; hexazinone ; indigenous species ; infrastructure ; landscapes ; laws and regulations ; occupations ; pastures ; riparian vegetation ; risk ; rivers ; sanitation ; tebuconazole ; tebuthiuron ; toxicity ; water quality ; Brazil ; Pantanal ; Pesticides ; Pharmaceuticals and personal care products (PPCPs) ; Hormones ; Industrial chemicals ; Aquidauana River
    Language English
    Dates of publication 2023-10
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2023.139429
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Cologne/Königswinter

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