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https://www.readbyqxmd.com/read/29779225/soil-transmitted-helminth-infections-associated-with-wastewater-and-sludge-reuse-a-review-of-current-evidence
#1
REVIEW
Isaac Dennis Amoah, Anthony Ayodeji Adegoke, Thor Axel Stenström
OBJECTIVE: To review current evidence on infections related to the concentration of soil-transmitted helminth (STH) eggs in wastewater, sludge and vegetables irrigated with wastewater or grown on sludge-amended soils. METHOD: Search of Web of Science, Science Direct, PubMed and Google Scholar databases for publications reporting on STH egg concentration in wastewater, sludge and vegetables and for epidemiological studies on wastewater/sludge reuse and STH infections...
May 19, 2018: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/29779189/environmental-factors-determining-the-accumulation-of-metals-cu-zn-mn-and-fe-in-tissues-of-taraxacum-sp-sect-taraxacum
#2
Elżbieta Królak, Jolanta Marciniuk, Katarzyna Popijantus, Paulina Wasilczuk, Zbigniew Kasprzykowski
The genus Taraxacum is used in the assessment of soil contamination with heavy metals. There are relatively few studies using sections or species representing this genus. The presented research was conducted in Poland on two habitats, varied in terms of nutrients and metals content. The content of selected metals in leaves and roots of Taraxacum sect. Taraxacum was determined. It was found that in the conditions of increased content of metals in the soil, the analysed species representing sect. Taraxacum accumulate higher amounts of metals in their leaves and roots...
May 19, 2018: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29779147/promicromonospora-viridis-sp-nov-a-novel-actinomycete-isolated-from-soil
#3
Liying Jin, Junwei Zhao, Shanwen Jiang, Yang Zhao, Xiaoyang Han, Xiaowei Guo, Xiangjing Wang, Wensheng Xiang
Two Gram-stain positive, aerobic actinomycete strains, designated NEAU-JGR1T and NEAU-JGC41, were isolated from soil collected from Fairy Lake Botanical Garden in Shenzhen, Guangdong Province, south of China. The 16S rRNA gene sequences analysis showed that the two strains exhibited 99.5% 16S rRNA gene sequence similarity with each other and were closely related to Promicromonospora thailandica JCM 17130T (99.4, 99.3%) and Promicromonospora citrea DSM 43110T (99.2, 99.2%). Phylogenetic analysis based on the 16S rRNA gene sequences indicated that the two strains clustered together and formed a cluster with P...
May 19, 2018: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/29779132/cryptic-dispersal-of-cyanidiophytina-rhodophyta-in-non-acidic-environments-from-turkey
#4
Manuela Iovinella, Ayla Eren, Gabriele Pinto, Antonino Pollio, Seth J Davis, Paola Cennamo, Claudia Ciniglia
Cyanidiophytina are a group of polyextremophilic red algae with a worldwide, but discontinuous colonization. They are restricted to widely dispersed hot springs, geothermal habitats, and also some human-altered environments. Cyanidiophytina are predominant where pH is prohibitive for the majority of eukaryotes (pH 0.5-3). Turkey is characterized by areas rich in volcanic activity separated by non-volcanic areas. Here we show that Cyanidiophycean populations are present in thermal baths located around Turkey on neutral/alkaline soils...
May 19, 2018: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/29778984/the-role-of-cuzn-and-mn-superoxide-dismutases-in-earthworm-eisenia-andrei-kept-in-two-distinct-field-contaminated-soils
#5
Radka Roubalová, Jiří Dvořák, Petra Procházková, František Škanta, Isabel Navarro Pacheco Natividad, Jaroslav Semerád, Tomáš Cajthaml, Martin Bilej
Polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs), together with polycyclic aromatic hydrocarbons (PAHs), represent highly toxic and persistent organic environmental pollutants, especially due to their capability for bioaccumulation in fatty tissues. To observe the environmentally relevant effect of these compounds on earthworms, two soils naturally contaminated with PCDD/Fs and PAHs were used in our experiments. We focused on the role of CuZn- and Mn-superoxide dismutases. We assembled a full-length sequences of these molecules from Eisenia andrei earthworm and confirmed their activity...
May 17, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29778955/controlled-release-urea-reduced-nitrogen-leaching-and-improved-nitrogen-use-efficiency-and-yield-of-direct-seeded-rice
#6
Shugang Zhang, Tianlin Shen, Yuechao Yang, Yuncong C Li, Yongshan Wan, Min Zhang, Yafu Tang, Samuel C Allen
The use of controlled-release urea (CRU) has become one of best management practices for increasing crop yield and improving nitrogen (N) use efficiency (NUE). However, the effects of CRU on direct-seeded rice are not well understood while direct-seeding has gradually replaced transplanting due to increasing labor cost and lack of irrigation water. The objective of this two-year field experiment was to compare the effects of the CRU at four rates (120, 180, 240 and 360 kg N ha-1 , CRU1, CRU2, CRU3 and CRU4, respectively) with a conventional urea fertilizer (360 kg N ha-1 ; U) and a control (no N fertilizer applied; CK) on yield, biomass, NUE of direct-seeded rice and soil nutrients...
May 17, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29778812/ameliorative-effects-of-boron-on-aluminum-induced-variations-of-cell-wall-cellulose-and-pectin-components-in-trifoliate-orange-poncirus-trifoliate-l-raf-rootstock
#7
Lei Yan, Muhammad Riaz, Xiuwen Wu, Chenqing Du, Yalin Liu, Cuncang Jiang
Aluminum (Al) phytotoxicity is a major limitation in the production of crops in the soils with pH ≤ 5. Boron (B) is indispensable nutrient for the development of higher plants and B role has been reported in the alleviation Al toxicity. Trifoliate orange rootstock was grown in two B and two Al concentrations. The results of the present study showed that Al toxicity adversely inhibited root elongation and exhibited higher oxidative stress in terms of H2 O2 and O2 - under B-deficiency. Additionally, the X-ray diffraction (XRD) analysis confirmed the increase of the cellulose crystallinity in the cell wall (CW)...
May 17, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29778683/biochar-enhances-plant-growth-and-nutrient-removal-in-horizontal-subsurface-flow-constructed-wetlands
#8
Kuno Kasak, Jaak Truu, Ivika Ostonen, Jürgen Sarjas, Kristjan Oopkaup, Päärn Paiste, Margit Kõiv-Vainik, Ülo Mander, Marika Truu
Biochar has shown great potential as an amendment to improve soil quality and promote plant growth, as well as to adsorb pollutants from water. However, information about the effect of biochar on the wastewater treatment efficiency in horizontal subsurface flow (HSSF) constructed wetlands (CWs) is still scarce. In this study, we assessed the effect of biochar amendment on the purification efficiency of pretreated municipal wastewater in planted (Typha latifolia) experimental horizontal subsurface flow filters filled with lightweight expanded clay aggregates (LECA)...
May 17, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29778501/the-discrimination-of-geoforensic-trace-material-from-close-proximity-locations-by-organic-profiling-using-hplc-and-plant-wax-marker-analysis-by-gc
#9
G McCulloch, L A Dawson, J M Ross, R M Morgan
There is a need to develop a wider empirical research base to expand the scope for utilising the organic fraction of soil in forensic geoscience, and to demonstrate the capability of the analytical techniques used in forensic geoscience to discriminate samples at close proximity locations. The determination of wax markers from soil samples by GC analysis has been used extensively in court and is known to be effective in discriminating samples from different land use types. A new HPLC method for the analysis of the organic fraction of forensic sediment samples has also been shown recently to add value in conjunction with existing inorganic techniques for the discrimination of samples derived from close proximity locations...
May 16, 2018: Forensic Science International
https://www.readbyqxmd.com/read/29778407/the-current-status-of-coral-reefs-and-their-vulnerability-to-climate-change-and-multiple-human-stresses-in-the-comoros-archipelago-western-indian-ocean
#10
B Cowburn, M A Samoilys, D Obura
Coral bleaching and various human stressors have degraded the coral reefs of the Comoros Archipelago in the past 40 years and rising atmospheric CO2 levels are predicted to further impact marine habitats. The condition of reefs in the Comoros is poorly known; using SCUBA based methods we surveyed reef condition and resilience to bleaching at sites in Grande Comore and Mohéli in 2010 and 2016. The condition of reefs was highly variable, with a range in live coral cover between 6% and 60% and target fishery species biomass between 20 and 500 kg per ha...
May 16, 2018: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/29778199/disinfection-of-transboundary-animal-disease-viruses-on-surfaces-used-in-pork-packing-plants
#11
Peter W Krug, Talina Davis, Catherine O'Brien, Michael LaRocco, Luis L Rodriguez
In the event of an intentional or accidental incursion of a transboundary animal disease (TAD) virus into the US, a major concern to the meat industry would be the potential contamination of packing plants by processing infected animals. TAD agents such as foot and mouth disease virus (FMDV), African swine fever virus (ASFV) and classical swine fever virus (CSFV) are found in swine products such as blood and feces and are present in the tissues of infected animals. To test the disinfection of TAD viruses in a pork-packing environment, a previously developed disinfection assay was used to test two biocides currently used by industry sanitarians, against TAD viruses dried on industry relevant surfaces in saline or swine products...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778169/rhizophagus-irregularis-influences-as-and-p-uptake-by-alfafa-and-the-neighboring-non-host-pepperweed-growing-in-an-as-contaminated-soil
#12
Xin Zhang, Baihui Ren, Songlin Wu, Yuqing Sun, Baodong Chen, Ruojuan Li
It was documented that arbuscular mycorrhiza fungi (AMF) play an important role in protecting host plants against arsenic (As) contamination. However, most terrestrial ecosystems contain a considerable number of nonmycorrhizal plants. So far little information is available for the interaction of such non-host plants with AMF under As contaminations. By using a dual compartment cultivation system with a plastic board or a nylon mesh separating roots of non-host pepperweed from roots of the AM-host alfafa plants, avoiding direct root competition, the two plant species were grown separately or partially separated (with rhizosphere effects) in the presence or absence of the AMF Rhizophagus irregularis in As-contaminated soil...
May 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29778168/development-of-a-novel-myconanomining-approach-for-the-recovery-of-agriculturally-important-elements-from-jarosite-waste
#13
Ankita Bedi, Braj Raj Singh, Sunil K Deshmukh, Nisha Aggarwal, Colin J Barrow, Alok Adholeya
In this study, an ecofriendly and economically viable waste management approach have been attempted towards the biosynthesis of agriculturally important nanoparticles from jarosite waste. Aspergillus terreus strain J4 isolated from jarosite (waste from Debari Zinc Smelter, Udaipur, India), showed good leaching efficiency along with nanoparticles (NPs) formation under ambient conditions. Fourier-transform infrared spectroscopy (FT-IR) and transmission electron microscopy (TEM) confirmed the formation of NPs...
May 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29778166/morphological-and-molecular-diversity-of-arbuscular-mycorrhizal-fungi-in-revegetated-iron-mining-site-has-the-same-magnitude-of-adjacent-pristine-ecosystems
#14
Caroline Krug Vieira, Matheus Nicoletti Marascalchi, Arthur Vinicius Rodrigues, Rafael Dutra de Armas, Sidney Luiz Stürmer
Arbuscular mycorrhizal fungi (AMF) are important during revegetation of mining sites, but few studies compared AMF community in revegetated sites with pristine adjacent ecosystems. The aim of this study was to assess AMF species richness in a revegetated iron-mining site and adjacent ecosystems and to relate AMF occurrence to soil chemical parameters. Soil samples were collected in dry and rainy seasons in a revegetated iron-mining site (RA) and compared with pristine ecosystems of forest (FL), canga (NG), and Cerrado (CE)...
May 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29778160/food-contamination-as-a-pathway-for-lead-exposure-in-children-during-the-2010-2013-lead-poisoning-epidemic-in-zamfara-nigeria
#15
Simba Tirima, Casey Bartrem, Ian von Lindern, Margrit von Braun, Douglas Lind, Shehu Mohamed Anka, Aishat Abdullahi
In 2010, an estimated 400 to 500 children died of acute lead poisoning associated with artisanal gold mining in Zamfara, Nigeria. Processing of gold ores containing up to 10% lead within residential compounds put residents, especially children, at the highest risk. Principal routes of exposure were incidental ingestion and inhalation of contaminated soil and dusts. Several Nigerian and international health organizations collaborated to reduce lead exposures through environmental remediation and medical treatment...
May 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29778159/effects-of-1-octyl-3-methylimidazolium-nitrate-on-the-microbes-in-brown-soil
#16
Cheng Zhang, Jun Wang, Lusheng Zhu, Zhongkun Du, Jinhua Wang, Xi Sun, Tongtong Zhou
The toxicity of ionic liquids (ILs) on soil organisms has aroused wide attention due to their high-solubility. The present investigation focused on the toxicity of 1-octyl-3-methylimidazolium nitrate ([C8 mim]NO3 ) on the microbial populations (bacteria, fungi, and actinomycetes), soil enzyme (urease, dehydrogenase, acid phosphatase, and β-glucosidase) activities, microbial community diversity using terminal restriction fragment length polymorphism (T-RFLP), and abundance of the ammonia monooxygenase (amoA) genes of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) using quantitative real-time polymerase chain reaction (q-PCR) in brown soil at each trial with doses of 0, 1...
May 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29778083/performance-of-single-pass-and-by-pass-multi-step-multi-soil-layering-systems-for-low-c-n-ratio-polluted-river-water-treatment
#17
Cai-Jie Wei, Wei-Zhong Wu
Two kinds of hybrid two-step multi-soil-layering (MSL) systems loaded with different filter medias (zeolite-ceramsite MSL-1 and ceramsite-red clay MSL-2) were set-up for the low-(C/N)-ratio polluted river water treatment. A long-term pollutant removal performance of these two kinds of MSL systems was evaluated for 214 days. By-pass was employed in MSL systems to evaluate its effect on nitrogen removal enhancement. Zeolite-ceramsite single-pass MSL-1 system owns outstanding ammonia removal capability (24 g NH4 + -Nm-2 d-1 ), 3 times higher than MSL-2 without zeolite under low aeration rate condition (0...
May 7, 2018: Chemosphere
https://www.readbyqxmd.com/read/29778077/selection-of-plants-for-phytoremediation-of-barium-polluted-flooded-soils
#18
Paulo Roberto Cleyton de Castro Ribeiro, Douglas Gomes Viana, Fábio Ribeiro Pires, Fernando Barboza Egreja Filho, Robson Bonomo, Alberto Cargnelutti Filho, Luiz Fernando Martins, Leila Beatriz Silva Cruz, Mauro César Pinto Nascimento
The use of barite (BaSO4) in drilling fluids for oil and gas activities makes barium a potential contaminant in case of spills onto flooded soils, where low redox conditions may increase barium sulfate solubility. In order to select plants able to remove barium in such scenarios, the following species were evaluated on barium phytoextraction capacity: Brachiaria arrecta, Cyperus papyrus, Eleocharis acutangula, E. interstincta, Nephrolepsis cf. rivularis, Oryza sativa IRGA 424, O. sativa BRS Tropical, Paspalum conspersum, and Typha domingensis...
May 10, 2018: Chemosphere
https://www.readbyqxmd.com/read/29778056/one-century-sedimentary-record-of-heavy-metal-pollution-in-western-taihu-lake-china
#19
Yan Li, Shenglu Zhou, Qing Zhu, Baojie Li, Junxiao Wang, Chunhui Wang, Lian Chen, Shaohua Wu
Long-term trends of sediment compositions are important for assessing the impact of human activities on the sediment and protecting the sediment environment. In this study, based on the contents of heavy metals and the Pb isotope ratios in lake sediments, atmospheric dustfall and soil in Yixing, China, the representative heavy metals (Zn, Pb, Cr and Cd) in lake sediments from western Taihu Lake were studied. The evolution history of heavy metals in the local environment was constructed for the past 100 years...
May 16, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29778049/toxicity-screening-of-biochar-mineral-composites-using-germination-tests
#20
Jan Mumme, Josephine Getz, Munoo Prasad, Ulf Lüder, Jürgen Kern, Ondřej Mašek, Wolfram Buss
This study assessed the properties and toxicity (water cress germination trials) of 38 waste-derived, novel biochar-mineral composites (BMCs) produced via slow pyrolysis and hydrothermal carbonization (hydrochars). The biochars were produced from sewage sludge and compost-like output (CLO) by varying the type of mineral additive (zeolite, wood ash and lignite fly ash), the mineral-to-feedstock ratio and the carbonization process. While pure hydrochars completely inhibited germination of water cress, this effect was ameliorated by mineral additives...
May 8, 2018: Chemosphere
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