Brazilian Journal of Environmental Sciences (Online) <p style="text-align: justify;">The <strong>Brazilian Journal of Environmental Sciences</strong> (RBCIAMB) is an interdisciplinary journal concerned with the ecological, environmental, territorial, social, cultural, economic and political aspects of sustainability and environmental sciences. It is a space for the exchange of ideas, information, knowledge and technology, from the diverse perspectives and disciplines which must be combined to formulate effective solutions aiming at sustainable development. From the interdisciplinarity perspective, the journal examines issues in natural resources, environmental conservation, water resources, waste management, environmental and clean technologies, environmental management, social perception, environmental education, urban development, environmental health, public policies, sustainable agriculture, among other topics associated with the sustainability. The interinstitutional coproduction’s, involving national or foreign institutions, are especially welcome.</p> <p style="text-align: justify;">RBCIAMB is a quarterly publication, edited by the Brazilian Association of Sanitary and Environmental Engineering (ABES). Publishes original and complete articles, with peer review.</p> Zeppelini Publishers en-US Brazilian Journal of Environmental Sciences (Online) 1808-4524 Priority pesticides not covered by GM Ordinance of the Ministry of Health No. 888, of 2021, on water potability standard in Brazil <p>The intense use of pesticides can be harmful to the environment&nbsp;and human health, being necessary to monitor the environmental&nbsp;concentrations of pesticides. The legislation on drinking water for&nbsp;human consumption is one of the guiding regulations about monitoring&nbsp;priority. Therefore, a systematic review was carried out to compile&nbsp;information on the contamination of surface water, groundwater,&nbsp;and treated water in Brazil. Thereby, we selected those pesticides&nbsp;which, although they are authorized for use and are among the topselling&nbsp;pesticides, are not regulated by GM Ordinance of the Ministry&nbsp;of Health (GM/MS) No. 888, of May 4, 2021. The databases used&nbsp;were PubMed, Scielo, Science Direct, Scopus, and Web of Science.&nbsp;Of the 122 pesticides in the market, 11 were selected. Analyses of&nbsp;environmental dynamics, concentration, and health effects were&nbsp;carried out. The Goss methodology and the Groundwater Ubiquity&nbsp;Score (GUS) index were used to estimate the risk of surface water and&nbsp;groundwater contamination, respectively. The concentrations found&nbsp;were compared with the values provided for in the guidelines adopted&nbsp;by international agencies, determining the Brazilian population’s&nbsp;margin of exposure (MOE) to the target pesticides. The results indicate&nbsp;a high probability of finding imidacloprid and hexazinone in the water,&nbsp;the prevalence of studies on surface waters, and the need to conduct&nbsp;additional studies as papers on some of the target pesticides were not&nbsp;found. It is concluded that the pesticides studied pose a low risk to&nbsp;human health, however, further studies are still required.</p> Beatriz Corrêa Thomé de Deus Emanuel Manfred Freire Brandt Renata de Oliveira Pereira ##submission.copyrightStatement## 2022-05-18 2022-05-18 1 12 10.5327/Z2176-94781077 Potential of carbon credits generation from organic waste composting of large generators: an alternative to the final disposal in sanitary landfills <p>This study aims to measure the potential for reducing Greenhouse&nbsp;Gases by surveying the amount of methane avoided by a&nbsp;company that collects and processes organic waste from large&nbsp;generators through composting. The applied methodology was&nbsp;the avoidance of methane emissions through composting, from&nbsp;the Clean Development Mechanism, considering as a baseline the&nbsp;emissions of the Santa Rosa sanitary landfill, located in the city of&nbsp;Seropédica, state of Rio de Janeiro, Brazil. With data on the amount&nbsp;of organic waste composted by the company, the emissions of&nbsp;carbon dioxide equivalent (CO2<sub>eq</sub>) were calculated, considering&nbsp;the standard emission factors established in the methodological&nbsp;instrument. The data show that the emission of 22,062 tons of&nbsp;CO<sub>2eq</sub> was avoided, which corresponds to a reduction of 83.5%&nbsp;of CH<sub>4</sub> emissions, if the waste composted by the company were&nbsp;deposited in the Santa Rosa sanitary landfill. In terms of carbon&nbsp;credit, according to the calculation, this value would correspond&nbsp;to approximately 17 thousand euros annually (considering current&nbsp;values). Thus, the applicability of this study contributes as a&nbsp;scientific basis to assist decision-making and effectiveness of other&nbsp;composting projects, enabling greater reductions in emissions of&nbsp;Greenhouse Gases in the long term and adequacy to the future&nbsp;perspectives of carbon market development. At the same time,&nbsp;it contributes to the construction of alternative scenarios for&nbsp;mitigation and reduction of Greenhouse Gases emissions in Brazil&nbsp;and promotes sustainable waste management, as determined by&nbsp;the National Solid Waste Policy.</p> Carlos Felipe Catorza Ana Ghislane Henriques Pereira Van Elk Luiz Henrique Soares Passos ##submission.copyrightStatement## 2022-05-18 2022-05-18 1 9 10.5327/Z2176-94781121 Critical assessment of restrictive socioeconomic measures taken during the SARS-CoV-2 pandemic and their impact on air quality worldwide <p>The ongoing global pandemic of the coronavirus disease 2019 has been&nbsp;a public health emergency of international concern. Countries have&nbsp;adopted several restriction measures. Because of this fateful moment,&nbsp;it was possible to assess the effect of anthropogenic activities on air&nbsp;pollutants in an unprecedented way. This work aims to outline changes&nbsp;in the air quality levels of several cities worldwide after the COVID-19&nbsp;pandemic. Data on the criteria pollutants found in these cities before&nbsp;and during the pandemic were used to evaluate air quality performance.&nbsp;The collection of most of the data was possible thanks to the constant&nbsp;monitoring methods applied in some countries. The severe limitation&nbsp;of people’s movements significantly reduced pollutants concentration,&nbsp;mainly due to the traffic of vehicles. Carbon monoxide, sulfur dioxide,&nbsp;nitrogen dioxide, particulate matter 2.5 μm, and particulate matter&nbsp;10 μm (CO, SO<sub>2</sub>, NO<sub>2</sub>, PM<sub>2.5</sub>, and PM<sub>10</sub>) concentration reductions were&nbsp;observed due to more restrictive or flexible lockdowns. In almost all&nbsp;cities evaluated, WHO’s air quality guidelines have been achieved,&nbsp;except for tropospheric ozone, which has been increasing with the&nbsp;reduction of nitric oxides (NOx) emissions. The increment in the&nbsp;concentrations of the pollutants immediately after the end of the&nbsp;restrictions is an indication that control strategies must be implemented&nbsp;to improve air quality.</p> Anna De Falco Luciana Maria Baptista Ventura Eduarda Santa-Helena Guilherme Carneiro Meziat Lígia Campos de Souza e Silva Marcos Felipe de Souza Pedreira Adriana Gioda ##submission.copyrightStatement## 2022-06-05 2022-06-05 1 15 10.5327/Z2176-94781270 Contributions of the periphyton to the growth of Nile tilapia (Oreochromis niloticus) fingerlings on different fixation substrates: an ecological approach <p>Knowing about the ecological aspects involved in the commercial&nbsp;breeding of aquatic organisms becomes an important tool to make&nbsp;aquaculture more productive and less impactful. Thus, periphyton taxon&nbsp;composition and biomass on different substrates and the influence of&nbsp;these on water quality and growth parameters of Nile tilapia fingerlings&nbsp;were examined. An experiment with three treatments (substrates for&nbsp;growth of periphyton: geomembrane, polyethylene terephthalate&nbsp;(PET), and bamboo) and a control (without substrate), each with five&nbsp;replicates, was conducted in a greenhouse with controlled aeration and&nbsp;temperature. Each mesocosm was populated with ten tilapia fingerlings&nbsp;with an average weight of 2.3 g for 30 days. Water quality parameters&nbsp;were not significantly different among treatments but remained within&nbsp;that established by the environmental legislation. In all treatments, 36&nbsp;periphyton taxa were observed. The bamboo substrate was the most&nbsp;diverse, which could be attributed to the fact it was a natural substrate.&nbsp;Regarding fish growth, there was a significant difference among the&nbsp;treatments, with the PET treatment having a higher condition factor&nbsp;(kn). The bamboo substrate was good for colonization concerning alga&nbsp;diversity; however, fish in the PET treatment and control exhibited&nbsp;higher performance and algae consumption values, respectively.</p> Ynaê Paula Schroder Rosa Márcia Regina Russo Luis Antônio Kioshi Aoki Inoue Lidiany Doreto Cavalcanti ##submission.copyrightStatement## 2022-06-05 2022-06-05 1 10 10.5327/Z2176-94781253 Remotely piloted aircraft-based landfill monitoring <p>Solid waste causes big problems to the environment and public health&nbsp;when disposed of inadequately. Law 14,026/2020 updated the legal&nbsp;framework for sanitation and amended Federal Law 12,305/2012, which&nbsp;establishes the National Policy for Solid Waste, and is regulated by Federal&nbsp;Decree 10,936/2022, which addresses waste management. The stability of&nbsp;waste massifs in landfills can be compromised by vertical and horizontal&nbsp;displacements. To ensure landfill environments’ physical and economic&nbsp;safety, operational measurements for monitoring such displacements are&nbsp;essential. Due to technological advances, new equipment and topographic&nbsp;survey techniques have emerged. Among them, the use of the remotely&nbsp;piloted aircraft (RPA) is an alternative for fast and effective monitoring,&nbsp;which can support strategic planning in landfills. The aim of the study&nbsp;was to identify displacements in waste massifs of the municipal sanitary&nbsp;landfill of Lages - SC using the RPA. The aerial survey was performed using&nbsp;the RVJET and Phantom 4 Advanced platforms with ground control points.&nbsp;Subsequently, orthomosaics and digital elevation models were produced.&nbsp;The identification of instability points in the landfill was performed. High&nbsp;displacement velocity was identified only at the massifs in operation.&nbsp;The landfill presented uniform surface settlement intensity and steady&nbsp;deformation velocity, not exceeding the warning level. This study calculated&nbsp;the displacement velocity with longer intervals between measurements than&nbsp;those currently used in traditional methods. Despite this, it was possible to&nbsp;build a database and carry out analysis by visual inspections and variations&nbsp;in the elevation of the massifs for preventive and corrective control of the&nbsp;landfill. RPA demonstrated to be adequate to monitor landfills. However,&nbsp;this assessment must be complemented with other instrumental analyses to&nbsp;understand waste massifs’ behavior over time.</p> Mariana Bonella Cunha Idelgardis Bertol André Leonardo Bortolotto Buck ##submission.copyrightStatement## 2022-06-13 2022-06-13 1 13 10.5327/Z2176-94781067 Electrical installations running through masonry walls: developing waste generation indicators for environmental performance analysis <p>Waste generation is one of the most relevant environmental aspects&nbsp;of the construction industry. About 47 million tons of construction and&nbsp;demolition waste are collected annually by Brazilian municipalities.&nbsp;One of the activities that generates waste is cutting chases on walls&nbsp;for installations. However, there are no waste generation indicators&nbsp;for this activity. Understanding waste generation processes enables&nbsp;managers to prevent them and promote their proper environmental&nbsp;management. This study assessed the generation of waste resulting&nbsp;from the cutting of clay bricks for electrical installations using three&nbsp;tools: milling cutter, marble saw, and cold chisel. The study included&nbsp;data collected from residential construction works and experimental&nbsp;data collected from the construction of real-scale walls. In a&nbsp;laboratory, five different wall configurations were built and the three&nbsp;tools mentioned were used to cut a chase on the walls. The results&nbsp;were statistically analyzed to define a waste generation index (WGI)&nbsp;by linear regression. The type of tool employed had no influence on&nbsp;the waste generation index, which was 26.5 ± 2.6 kg/m2. However, the&nbsp;tools used directly influenced the quality of the service, productivity,&nbsp;and the volume of waste generated. The waste from the milling&nbsp;cutter showed the smallest maximum aggregate size and the largest&nbsp;bulk density, followed by the waste resulting from the marble saw&nbsp;and the cold chisel. The marble saw and cold chisel waste samples&nbsp;had around 78% of their composition in the coarse aggregate grain&nbsp;size range. The milling cutter waste samples were the finest and had&nbsp;on average 60% of their composition in the fine aggregate grain size&nbsp;range. The width of the chases made with the milling cutter were&nbsp;smaller and more consistent than those made with the cold chisel, &nbsp;which showed irregularities and larger dimensions than necessary.&nbsp;From the waste generation indicators obtained in this study,&nbsp;construction managers will be able to choose more appropriate&nbsp;cutting tools and improve their planning and management systems&nbsp;to minimize associated environmental impacts.</p> Luna Ollin Steffen Charles Jaster de Oliveira Annelise Nairne Schamne André Nagalli ##submission.copyrightStatement## 2022-06-20 2022-06-20 1 11 10.5327/Z217694781240