Ecotoxicology

Moriarty, F.

doi:10.1177/096032718800700510

Cited by 17 publications

(13 citation statements)

References 10 publications

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“…The EC20 and EC50 indexes were determined by linear regression of the biological factor as a function of the logarithmic effluent concentration (Moriarty 1988). The acute toxicity index was calculated using the mean effective concentration (ATU = 100/EC50) and classified according to table 1.…”

Section: Ecotoxicological Analyzesmentioning

confidence: 99%

“…The ecotoxicology assesses the impact of pollutants in the scale of populations, communities and ecosystems, through the use of testing organisms (Hoffman et al 2002). Ecotoxicological parameters are used to forecast the transformation processes of pollutants in the environment at different trophic levels (Moriarty 1988;Costa et al 2008;Gavrilescu 2010). In this context, the objective of this study was to collect a sample of textile effluent from a plant located in the southeast Equation 1…”

Section: Introductionmentioning

confidence: 99%

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Physicochemical, Microbial and Ecotoxicological Characteristics of Textile Effluent Collected in the Southeast Region of Brazil

Mainardi

Bidóia²

2019

JEE

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The textile sector comprises several segments and detain a great economic and social value. Textile industries, however, demands large amounts of water and generate great loads of effluent in their production process. The effluent’s physical and chemical parameters, as much as its microbiological and ecotoxicological aspects, has been extremely useful to find out the key aspects for the development of novel methods of treatment and implementation of new techniques of industrial processing. In this study, a real effluent sample was collected from a textile factory situated in the southeast region of Brazil and analyzed for turbidity, solids content, oils and greases, alkalinity, pH value, electrical conductivity, BOD, COD, organic and inorganic components, total viable bacteria, coliforms and EC50 ecotoxicological degree using the microcrustacean Daphnia magna and the lettuce Lactuca sativa. The measured parameters were seen to have a great variation in comparison to a vast literature report and the characterization was shown to be extremely important in the search of new methods to reduce the volume and the toxicity of this kind of effluent.

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Section: Ecotoxicological Analyzesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Physicochemical, Microbial and Ecotoxicological Characteristics of Textile Effluent Collected in the Southeast Region of Brazil

Mainardi

Bidóia²

2019

JEE

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“…Decreases recorded between 1990 and 2014, which were indicated in the previous review of the implementation of environmental policy, continued to be observed between 2014 and 2016: emissions of sulphur oxides (SOx) decreased by 18.63% and ammonia (NH3) by 1.02%. Between 2014 and 2016, volatile organic compound (VOC) emissions increased by 3.04%, fine PM 2.5 by 3.83% and nitrogen oxides (NOx) by 0.05% (Akimoto, 2003;Guerreiro et al, 2014;Moriarty, 1988).…”

Section: Introductionmentioning

confidence: 99%

Comperative Analysis of Air Quality in European Union Countries as a Result of Innovative Clustering

Kuźmiński¹,

Wojtaszek²

2020

ERSJ

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Purpose: The overarching aim of this article is to divide EU countries into classes characterised by different levels of ecology in the field of air quality using factors in the form of emission levels of harmful substances into the atmosphere. The data included in the study concern the year 2017 and come from OECD STAT. Approach/Methodology/Design: The classification of EU countries was carried out using the cluster analysis method as one from data mining methods. The results confirmed the hypothesis that the European Union countries can be divided into three distinct classes according to the criterion of environmental performance in the area of air quality. Findings: In terms of the conditions considered for the international air quality test, concentration 3 was the best, namely Austria,

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“…The term ecotoxicology has been applied to the field of study focused on the effects of toxic chemicals on biological organisms, at the population, community, ecosystem level (Moriarty, 1988); Ecotoxicoparasitology , however, relates to the interface of three disciplines, and is concerned with complex systems including parasites, their hosts, and the toxicants to which they are exposed.…”

Section: Introductionmentioning

confidence: 99%

Ecotoxicoparasitology: Understanding mercury concentrations in gut contents, intestinal helminths and host tissues of Alaskan gray wolves (Canis lupus)

McGrew

O’Hara

Stricker

et al. 2015

Science of The Total Environment

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Some gastrointestinal helminths acquire nutrients from the lumen contents in which they live; thus, they may be exposed to non-essential elements, such as mercury (Hg), during feeding. The objectives of this study were: 1) determine the total mercury concentrations ([THg]) in Gray wolves (Canis lupus) and their parasites, and 2) use stable isotopes to evaluate the trophic relationships within the host. [THg] and stable isotopes (C and N) were determined for helminths, host tissues, and lumen contents from 88 wolves. Sixty-three wolves contained grossly visible helminths (71.5%). The prevalence of taeniids and ascarids was 63.6% (56/88) and 20.5% (18/88), respectively. Nine of these 63 wolves contained both taeniids and ascarids (14.3%). All ascarids were determined to be Toxascaris leonina. Taenia species present included T. krabbei and T. hydatigena. Within the GI tract, [THg] in the lumen contents of the proximal small intestine were significantly lower than in the distal small intestine. There was a significant positive association between hepatic and taeniid [THg]. Bioaccumulation factors (BAF) ranged from <1 to 22.9 in taeniids, and 1.1 to 12.3 in Toxascaris leonina. Taeniid and ascarid BAF were significantly higher than 1, suggesting that both groups are capable of THg accumulation in their wolf host. δ13C in taeniids was significantly lower than in host liver and skeletal muscle. [THg] in helminths and host tissues, in conjunction with stable isotope (C and N) values, provides insight into food-web dynamics of the host GI tract, and aids in elucidating ecotoxicoparasitologic relationships. Variation of [THg] throughout the GI tract, and between parasitic groups, underscores the need to further evaluate the effect(s) of feeding niche, and the nutritional needs of parasites, as they relate to toxicant exposure and distribution within the host.

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Ecotoxicology

Cited by 17 publications

References 10 publications

Physicochemical, Microbial and Ecotoxicological Characteristics of Textile Effluent Collected in the Southeast Region of Brazil

Physicochemical, Microbial and Ecotoxicological Characteristics of Textile Effluent Collected in the Southeast Region of Brazil

Comperative Analysis of Air Quality in European Union Countries as a Result of Innovative Clustering

Ecotoxicoparasitology: Understanding mercury concentrations in gut contents, intestinal helminths and host tissues of Alaskan gray wolves (Canis lupus)

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