ResearchPad - environmental-science https://www.researchpad.co Default RSS Feed en-us © 2020 Newgen KnowledgeWorks <![CDATA[Bloom announcement: An early autumn cyanobacterial bloom co-dominated by <i>Aphanizomenon flos</i>-<i>aquae</i> and <i>Planktothrix agardhii</i> in an agriculturally-influenced Great Lakes tributary (Thames River, Ontario, Canada)]]> https://www.researchpad.co/article/Nb5049ca9-1732-4c64-9c48-8cbe5d37ed89 <![CDATA[Life cycle inventory data on French organic waste treatments yielding organic amendments and fertilisers]]> https://www.researchpad.co/article/N866deae0-e0f8-489f-8a92-8cbbaffd92f1

To inform the modelling of organic waste treatments yielding organic amendments and fertilisers in France, published as “Screening LCA of French organic amendments and fertilisers” [1], we compiled data pertaining to the chemical characteristics of both raw and treated organic residues, as well as inventory data on the most common organic waste treatments. The majority of these life cycle inventory data was obtained from reports and other literature, but primary data was also compiled, notably for commercial organic fertiliser production. The data presented here can be used by future life cycle assessment studies on organic waste treatments, as well as to inform agricultural modelling.

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<![CDATA[Experimental design and data on the adsorption and photocatalytic properties of boron nitride/cadmium aluminate composite for Cr(VI) and cefoxitin sodium antibiotic]]> https://www.researchpad.co/article/N79a13d6f-54f2-4022-b092-98c2af94fa49

This article reports the experimental data on the adsorption and photocatalytic degradation-reduction properties of pure boron nitride (BN), cadmium aluminate (CdAl2O4) and boron nitride/cadmium aluminate (BN/CdAl2O4) composite for the hexavalent chromium (Cr(VI)) and cefoxitin sodium (CFT) in aqueous solution under the ultraviolet (UV) and visible light irradiation. This work evaluates the adsorption and photocatalytic efficiency of the 0.2g BN coupled with the CdAl2O4 in BN-0.2/CdAl2O4 composite for Cr(VI) and CFT. The experiments were performed by mixing the 0.025 material with 50 mL solution of known concentration (15 mg/L) at pH 3 for Cr(VI) and pH 7 for CFT. The obtained data can be valuable to select the proper light source (UV or visible) and pollutant to investigate the application of BN-0.2/CdAl2O4 composite. Moreover, presented data can help identify the equilibrium time for the adsorption process and to recognize the best process for the removal of the pollutants from wastewaters. A comparison of the obtained data with previously reported works has been conducted for the understanding of the adsorption and photocatalysis of Cr(VI) and CFT using various materials under the different experimental conditions.

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<![CDATA[Analytical framework and data for a municipal solid waste environmental performance assessment]]> https://www.researchpad.co/article/N9e7458ae-9c2a-489f-8765-8ced34b59a40

This article contains (i) a set of spreadsheets with data compiled from municipal sanitation or solid waste plans, and (ii) data of the individual and aggregate performance indicators. These indicators have been published in the Journal of Cleaner Production in the article entitled “A municipal solid waste indicator for environmental impact: assessment and identification of best management practices.” The data contained in the spreadsheets are divided as follows: worksheet 1 includes the municipal solid waste generation data from the Brazilian municipalities studied; worksheet 2 presents the individual indicators that form the aggregate indicator; worksheet 3 presents the aggregate indicator and the classification of the municipalities; worksheet 4 provides data correlation; worksheets 5 to 10 depict boxplot graphs of the data; and worksheets 11 to 14 present graphs of individual indicators on a per capita basis and the ranking of municipalities.

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<![CDATA[Dataset on part replacement of dipalmitoylphophatidylcholine with locust bean on stimulated tracheobronchial fluid, in vitro bioaccessibility test and modeling of lung deposition of trace elements bound to airborne particulates]]> https://www.researchpad.co/article/Nd6f2a0c8-039d-444e-9d7d-4ee558c731e1

The data presented in this article are related to our work on development of tracheobronchial fluid, in vitro bioaccessibility test and modeling of lung deposition of trace elements bound to airborne particulates [1]. In this article, a neutral modeled tracheobronchial fluid was formulated by partial replacement of some constituents in recipes of previously used lung epithelium fluids with local materials and was used in in vitro bioaccessibility extraction of elements-bound to airborne particulates. Dataset of particulate matters-bound trace elements collected in selected locations Ado – Ekiti is presented and the deposition of elements in different regions of respiratory tracts is estimated using Multiple-path particle deposition (MPPD) mathematic model. The data reveals that the formulated fluid has physical characteristics with superior properties to the existing fluids. The data also shows that bioaccessibility of elements were generally low (<30%) except for Cd and As with relatively moderate values (between 45 and 50%). Additionally, the lung deposition modeling shows that greater percentage of Cd (about 40% of inhaled dose) deposition in the lower alveolar part of the respiratory tract while tracheobronchial and extra-thoracic had 33% and 27% respectively. The data sets can be used as references to analyze data obtained using other formulation.

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<![CDATA[New theropod remains and implications for megaraptorid diversity in the Winton Formation (lower Upper Cretaceous), Queensland, Australia]]> https://www.researchpad.co/article/N54f0ac06-7dd3-4132-a1ec-8c71ec345581

The holotype specimen of the megaraptorid Australovenator wintonensis, from the Upper Cretaceous Winton Formation (Rolling Downs Group, Eromanga Basin) of central Queensland, is the most complete non-avian theropod found in Australia to date. In fact, the holotype of A. wintonensis and isolated megaraptorid teeth (possibly referable to Australovenator) constitute the only theropod body fossils reported from the Winton Formation. Herein, we describe a new fragmentary megaraptorid specimen from the Winton Formation, found near the type locality of A. wintonensis. The new specimen comprises parts of two vertebrae, two metatarsals, a pedal phalanx and multiple unidentifiable bone fragments. Although the new megaraptorid specimen is poorly preserved, it includes the only megaraptorid vertebrae known from Queensland. The presence of pleurocoels and highly pneumatic caudal centra with camerate and camellate internal structures permit the assignment of these remains to Megaraptora gen. et sp. indet. A morphological comparison revealed that the distal end of metatarsal II and the partial pedal phalanx II-1 of the new specimen are morphologically divergent from Australovenator. This might indicate the presence of a second megaraptorid taxon in the Winton Formation, or possibly intraspecific variation.

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<![CDATA[Data on the concentration of heavy metals and metalloids in lotic water of the Mantaro river watershed and human risk assessment, Peru]]> https://www.researchpad.co/article/Nbf8a6cd3-a7e9-4684-9081-bc63276fc1b1

This article contains data on the concentration of heavy metals and metalloids in the water of seven rivers in the Mantaro river watershed in the central Andes of Peru, collected during the autumn of 2019. The concentrations of Cu, Fe, Pb, Zn and As were determined by flame atomic absorption spectrophotometry to assess human risk. The concentration of heavy metals and arsenic varied according to the sector of the rivers evaluated. The cluster analysis identified four different groups among the observation sectors. The risk assessment for humans was conducted on the basis of exposure doses to heavy metals and arsenic in water by ingestion and dermal pathways, using standard methods established by USEPA. These data can be reused as a basis for estimating the cancer risk or as a comparison group for future risk studies. They can also be useful to public health policy makers when proposing surveillance and control programmes using remedial technologies.

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<![CDATA[Data on monthly physicochemical variation of Tropical Island groundwater of Pulau Bidong, South China Sea]]> https://www.researchpad.co/article/N69a338aa-dc1d-4226-8115-2da59bc3f10d

The groundwater samples of Pulau Bidong, Terengganu, Malaysia were collected from five sampling stations from June to October 2016. Physical parameters such as temperature, specific conductivity, dissolved oxygen (DO), pH, salinity, and DO saturation were measured in-situ by using handheld device. Meanwhile, total suspended solid (TSS), total dissolved solid (TDS), nitrate (NO3), nitrite (NO2), ammonium (NH4+) and phosphate (PO43−) were analysed and detected using UV–Vis Spectrophotometer. The inorganic nutrients (NO3, NO2, NH4+ and PO43−) were ranged from 0.000 to 4.310 mg/L, 0.000 to 0.190 mg/L, 0.000 to 0.807 mg/L and 0.003 to 0.028 mg/L, respectively. The monthly trends of specific conductivity, DO, salinity, DO saturation, NO3, NO2 and NH4+ demonstrated significant variation in June (the lowest rainfall) compared to other months. Correlation matrix revealed that temperature was associated with the specific conductivity, and NH4+ strongly correlated with DO, NO3 and NO2. Nevertheless, there is a strong negative correlation between physicochemical parameters and monthly rainfall distribution. Notably, future studies are required for long-term monitoring to ensure the good quality of groundwater from Pulau Bidong. The spatial and temporal variability of the present data has been reported by Tan et al. [1].

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<![CDATA[Measurement data from sample plots characterizing three development stages of a subalpine spruce forest and describing the bird assemblages associated with them]]> https://www.researchpad.co/article/N86e82619-eaad-4099-801a-bde16e2075a4

Highlights

  • Data on the characteristics of tree stands as well as the birds inhabiting them were collected from a subalpine spruce forest.

  • The study area exhibited development properties resulting from both biotic and abiotic factors.

  • Tree stands were characterized in terms of the tree layer, saplings, and deadwood.

  • The data included bird species composition and pair density in the breeding season or individual bird density in the nonbreeding season.

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<![CDATA[2019 Novel Coronavirus (COVID-19) Pandemic: Built Environment Considerations To Reduce Transmission]]> https://www.researchpad.co/article/N0248b252-038b-460d-82a9-c3e3547a9e91

With the rapid spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that results in coronavirus disease 2019 (COVID-19), corporate entities, federal, state, county, and city governments, universities, school districts, places of worship, prisons, health care facilities, assisted living organizations, daycares, homeowners, and other building owners and occupants have an opportunity to reduce the potential for transmission through built environment (BE)-mediated pathways. Over the last decade, substantial research into the presence, abundance, diversity, function, and transmission of microbes in the BE has taken place and revealed common pathogen exchange pathways and mechanisms.

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<![CDATA[Structural and Functional Changes in Prokaryotic Communities in Artificial Pit Mud during Chinese Baijiu Production]]> https://www.researchpad.co/article/N295dcb16-b148-4088-8360-178d333f2405

Strong-flavor baijiu (SFB) accounts for more than 70% of all Chinese liquor production. In the Chinese baijiu brewing industry, artificial pit mud (APM) has been widely used since the 1960s to construct fermentation cellars for production of high-quality SFB. To gain insights at the systems level into the mechanisms driving APM prokaryotic taxonomic and functional dynamics and into how this variation is connected with high-quality SFB production, we performed the first combined metagenomic, metaproteomic, and metabolomic analyses of this brewing microecosystem. Together, the multi-omics approach enabled us to develop a more complete picture of the changing metabolic processes occurring in APM microbial communities during high-quality SFB production, which will be helpful for further optimization of APM culture technique and improvement of SFB quality.

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<![CDATA[Isolation and Characterization of Ochrobactrum tritici for Penicillin V Potassium Degradation]]> https://www.researchpad.co/article/Nf0dc3b8f-be51-46d2-8143-2dc97cc76b2a

Substantial concentrations of penicillin V potassium (PVK) have been found in the environment, which may pose potential threats to human health and contribute to the emergence of penicillin-resistant bacterial strains. In this study, antibiotic-degrading bacterial strains for PVK were isolated from sludge and characterized. Ochrobactrum tritici was selected for the biodegradation of PVK with high efficiency. To enhance its PVK degradation ability, a whole-cell biodegradation process was established and optimized using Ochrobactrum tritici. The degradation rate with 0.5 mg/ml PVK reached 100% within 3 h. The potential biodegradation pathway was also investigated. To the best of our knowledge, the present study provides new insights into the biodegradation of PVK using an Ochrobactrum tritici strain, a promising candidate strain for the industrial biodegradation of β-lactam antibiotics.

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<![CDATA[Activity and Metabolic Versatility of Complete Ammonia Oxidizers in Full-Scale Wastewater Treatment Systems]]> https://www.researchpad.co/article/Ncfad0319-6111-4664-b4d1-5922cfdd2d8e

The discovery of comammox in the genus Nitrospira changes our perception of nitrification. However, genomes of comammox organisms have not been acquired from full-scale WWTPs, and very little is known about their survival strategies and potential metabolisms in complex wastewater treatment systems. Here, four comammox metagenome-assembled genomes and metatranscriptomic data sets were retrieved from two full-scale WWTPs. Their impressive and—among nitrifiers—unsurpassed ecophysiological versatility could make comammox Nitrospira an interesting target for optimizing nitrification in current and future bioreactor configurations.

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<![CDATA[The Louisiana Community Oil Spill Survey (COSS) dataset]]> https://www.researchpad.co/article/N360ae826-90a4-46b3-94de-b585feb80bd0

This article presents an overview of the Louisiana Community Oil Spill Survey (COSS), the dataset used in “Community Sentiment following the Deepwater Horizon Oil Spill Disaster: A Test of Time, Systemic Community, and Corrosive Community Models” [1] as well as elsewhere [2–6]. The COSS, administered by the Louisiana State University's Public Policy Research Laboratory, consists of five waves of cross-sectional trend data attuned to the characteristics and effects of the 2010 BP Deepwater Horizon (BP-DH) oil spill on those coastal Louisiana residents most affected by the disaster. Respondents were randomly drawn from a list of nearly 6,000 households in the coastal Louisiana zip codes located in Lafourche Parish, Plaquemines Parish, Terrebonne Parish, and the community of Grand Isle. COSS data were initially collected in June 2010 when oil was still flowing from the wellhead, with additional data waves, collected in October 2010, April 2011, April 2012, and April 2013. The respective response rates were: June 2010, 20%; October 2010, 24%; April 2011, 25%; April 2012, 20%; and April 2013, 19%.

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<![CDATA[Datasets associated with investigating the potential for beneficial reuse of produced water from oil and gas extraction outside of the energy sector]]> https://www.researchpad.co/article/Ndfeaf21d-8e60-4afc-af71-8532c99dffcb

The data in this report are associated with https://doi.org/10.1016/j.scitotenv.2020.137085[4] and include data on water volumes and water quality related to the major unconventional oil and gas plays in the U.S. The data include volumes of water co-produced with oil and gas production, county-level estimates of annual water use volumes by various sectors, including hydraulic fracturing water use, and the quality of produced water. The data on volumes of produced water and hydraulic fracturing water volumes were obtained from the IHS Enerdeq and FracFocus databases. Water use in other sectors was obtained from the U.S. Geological Survey water use database. Data on produced water quality were obtained from the USGS produced waters database.

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<![CDATA[A dataset for the flood vulnerability assessment of the upper Cross River basin using morphometric analysis]]> https://www.researchpad.co/article/N2e839243-60c8-4cb2-9da5-98a15ec15e35

The on-site collection of data is not only time consuming, but expensive and perhaps near impossible in restive communities within the upper Cross River basin (UCRB). Therefore, the importance of this data cannot be overemphasized. This article presents a Digital Elevation Model (DEM), land use and land cover (LULC) map, soil map, geology map and climatic datasets which enhance the understanding of the physical characteristics of the upper Cross River basin using morphometric analysis. The use of the LULC map, soil map and the DEM in conjunction with the climatic data enhance the creation of the Hydrologic Response Units (HRUs) and the water balance modelling. The simulation of the water balance at the HRU level enables the routing of the runoff to the reaches of the sub-basins and then to the channels. The geology map provides confirmatory information to the morphometric analysis. The compound factor computed from all the derived morphometric parameters enhance the determination of the overall flood potential of the congruent sub-basins.

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<![CDATA[Dataset of blood cockle (Anadara granosa) microbiota from coastal areas and earthen-pond farms around the upper Gulf of Thailand]]> https://www.researchpad.co/article/N5732d6bd-18e9-4913-9280-a0e139ff618c

The blood cockle (Anadara granosa), a bivalve mollusc, is a unique seafood item in Southeast Asia. Bivalve molluscs are filter feeders upon plankton, and so they may bioaccumulate microbes and heavy metals in their tissues. Bacteria survival can be enhanced by living inside the shell and they can subsequently infect humans and higher vertebrates after ingestion of the bivalve. This study presented a metagenomics analysis of the bacteria associated with A. granosa from six farms around the Gulf of Thailand. Three farms were located on the coast and the other three were from earthen ponds. Genomic DNA was extracted from the samples and analysed via sequencing of the V3–V4 region of the 16S rRNA gene, and then using a 97% DNA sequence similarity cut-off for designation of the operational taxonomic units. The environmental parameters, including temperature, pH, salinity, dissolved oxygen, and the concentration of three heavy metals (Cu, Cr, and Hg) and one metalloid (As) were investigated. The raw sequence data is available at the NCBI Sequence Read Archive accession number PRJNA592226. The Proteobacteria, Bacteroidetes and Cyanobacteria were common components of the microbiota in all six habitats and together comprised more than 77% of the relative abundance in all the samples. This is the first report on the microbiome in blood cockles in Thailand by a culture independent method. The data can be applied for efficiently controlling and improving seafood safety management.

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<![CDATA[Optimization of hydroponic growth system and Na+-fluorescence measurements for tree species Pongamia pinnata (L.) pierre]]> https://www.researchpad.co/article/N3af70342-6be1-4fd9-aa37-a449557e41e2

Domestication and cultivation of tree species, such as Pongamia pinnata is quite important because of its biofuel properties. Seedlings grown in modified hydroponic culture were morphologically similar to that of soil grown seedlings. Further, seedlings were allowed to grow without root limitation. Comparatively, our modified hydroponic growth system can be performed with minimal resources. Prior incubated root segments with CoroNa-Green AM dye retained maximum amount of dye when compared to CoroNa-Green AM dye incubated sections. Our modified protocol provides quantitative analysis of 2D and 3D imaging process at cellular and sub-cellular level.

  • Our protocol is customized to study individual plant behavior.

  • Additionally, it is customized for growing tap rooted trees species hydroponically. Changing the nutrient solution with regular intervals provides continuous supply of nutrients to the plants.

  • Prior incubation of root segments with Na+ probe (CoroNa-Green AM) provides better resolution in imaging process. Additionally, both 2D and 3D imaging provides a means to acquire and analyze entirety of the sample.

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<![CDATA[Long-term groundwater protection efficiency of different types of sanitary landfills: Model description]]> https://www.researchpad.co/article/Na531545c-ec12-43b5-b187-65514312a899

A new risk assessment method intended for comparing long-term environmental performance of different types of sanitary landfills was customized. Processes occurring within the hydrogeological environment were excluded from modeling, because they can be addressed separately. Only parameters directly related to leachate composition at the bottom of the landfill and leachate losses into the subsoil after landfill closure which can be reliably determined by evaluating already available information from the scientific literature were considered as necessary inputs for quantitative modeling. Once the simulated outcomes for a primary output ‘’fugitive emissions of a reference pollutant into the subsoil’’ are acquired, more complex outputs can be derived, too. Commercially available risk assessment software which operates within an Excel environment was used to fulfill the task.

  • Uncertainty of data as well as heterogeneity and complexity of landfill systems was considered by attributing the selected input parameters with adequate probability density functions

  • Probability density functions attributed to the inputs differ considerably between the antagonistic landfill types

  • Risk assessments related outputs were defined as probabilities that an aquifer would be polluted due to landfill derived emissions into the subsoil

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<![CDATA[Determination of bioavailable phosphorus in water samples using bioassay methods]]> https://www.researchpad.co/article/N7d748d6f-cc90-4205-a89d-ece6374d7b44

The total phosphorus analyte (TP) has a long history of use in monitoring and regulatory applications relating to management of cultural eutrophication in freshwaters. It has become apparent, however, that the fraction of the TP analyte ultimately available to support algal growth varies significantly spatially (within a system), seasonally, and among systems. The algal bioassay methods described here provide an approach for determining the bioavailable fraction of the three operationally defined components of TP: soluble reactive phosphorus (SRP), dissolved organic phosphorus (DOP), and particulate phosphorus (PP) in effluents and tributaries discharging to lakes and reservoirs. Application of the technique facilitates a quantitative ranking and targeting of bioavailable phosphorus sources for management.

  • One congruent method to fractionate particulate and soluble phosphorus (found in aquatic samples) into bioavailable and unavailable fractions was developed based on compilation, adaptation and expansion of two methods from the late 1970s and early 1980s.

  • Detailed descriptions for culturing phosphorus-starved algae, sub-sampling schedules, kinetics determination, and data presentation are provided

  • Reproducibility is demonstrated by replication and closure of a mass balance on phosphorus.

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