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PHOTOCATALYTIC DEGRADATION OF NAPHTHOL GREEN B OVER FEWO4-CUS PARTICULATE SYSTEM fewo4-cus颗粒体系光催化降解萘酚绿b
Q4 Environmental Science Pub Date : 2023-01-01 DOI: 10.53550/pr.2023.v42i01.025
L. Joshi, Jyotsana Panwar, R. Ameta, D. Soni
The photocatalytic degradation of naphthol green B (NGB) has been studied under visible light in the presence of FeWO4 – CuS composite as a photocatalyst. Ferric tungstate was prepared by hydrothermal method. The photocatalytic activity of FeWO4 - CuS composite was evaluated for photodegradation of naphthol green B dye under visible light. As-prepared composite was characterized by techniques such as XRD, EDX and FESEM. The effect of various parameters was investigated on rate of degradation and optimum conditions were obtained as pH = 9.0, concentration of NGB = 1.9 × 10–4 M, amount of FeWO4 – CuS = 0.10 g and light intensity = 70.0 mWcm–2. It was observed that composite has the highest catalytic activity in basic medium. A tentative mechanism for the reaction has been proposed involving hydroxyl radical as an active oxidizing species.
研究了FeWO4 - cu复合光催化剂在可见光下对萘酚绿B (NGB)的光催化降解。采用水热法制备了钨酸铁。考察了FeWO4 - cu复合材料在可见光下光降解萘酚绿B染料的光催化活性。用XRD、EDX、FESEM等技术对制备的复合材料进行了表征。考察了各参数对降解速率的影响,确定了最佳条件为pH = 9.0, NGB浓度= 1.9 × 10-4 M, FeWO4 - cu用量= 0.10 g,光照强度= 70.0 mWcm-2。结果表明,复合材料在碱性介质中具有最高的催化活性。提出了一种涉及羟基自由基作为活性氧化物质的反应机制。
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引用次数: 0
HEAVY METAL CONTAMINATED WATER APPLICATION AND HOW IT AFFECTS SOIL AND PLANTS THROUGH PHYTOREMEDIATION 重金属污染水的应用及植物修复对土壤和植物的影响
Q4 Environmental Science Pub Date : 2023-01-01 DOI: 10.53550/pr.2023.v42i01.019
Srikanth Humnabad, K. Kumari
Water is increasingly being applied for irrigation in vegetable cultivation in the peri-urban zones of rapidly rising cities. Wastewater being used by Farmers is heavily polluted with poisonous heavy metals as a result of industrial discharge and other human activities. As a result, long-term wastewater application is detrimental to soil and vegetable health. The current study looked at the heavy metal concentration (As, Cd, Cr, Hg, and Pb) in agricultural soil, water, and vegetable samples. Heavy metals are the high-density content and not easily accumulated in the soil and water. these metals are dissolved in soil through anthropogenic processes, like humans are using the metals like mercury in lab and after the use they dispose these metal on the soil surface. When these metals are put on the soil surface they decompose and leach into the soil subsurface layer after that they percolate into groundwater.
在快速崛起的城市的城郊地区,越来越多地用水灌溉蔬菜种植。由于工业排放和其他人类活动,农民使用的废水受到有毒重金属的严重污染。因此,长期施用废水对土壤和蔬菜健康有害。目前的研究着眼于农业土壤、水和蔬菜样本中的重金属浓度(砷、镉、铬、汞和铅)。重金属含量高,不易在土壤和水中积累。这些金属通过人为过程溶解在土壤中,比如人类在实验室中使用汞等金属,使用后他们将这些金属处理在土壤表面。当这些金属被放在土壤表面时,它们会分解并渗入土壤的次表层,然后渗透到地下水中。
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引用次数: 0
PHOTODEGRADATION STUDY OF EVANS BLUE IN PRESENCE OF BIVO4 /MWCNTS bivo4 / mwcnts存在下Evans蓝的光降解研究
Q4 Environmental Science Pub Date : 2023-01-01 DOI: 10.53550/pr.2023.v42i03.009
SALMA KHAN, SURESH C. AMETA, RAKSHIT AMETA, JAYESH BHATT
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引用次数: 0
FORECASTING OF DAILY PM10 USING LONG SHORT TERM MEMORY NEURAL NETWORK IN GANGA NAGAR, MEERUT INDIA FOR HEALTH AND AGRICULTURE APPLICATIONS 在印度密鲁特恒河纳加尔使用长短期记忆神经网络预测每日可吸入颗粒物10,用于卫生和农业应用
Q4 Environmental Science Pub Date : 2023-01-01 DOI: 10.53550/pr.2023.v42i03.006
VIBHA YADAV, BISHAL KUMAR MISHRA
Air quality is known to significantly affect health, forecasting it is a very important task. A highly industrialized region in India, Meerut has one of the most extensive agricultural applications. Delhi, India’s central pollution control board keeps time series data. In order to predict PM 2.5 one day in advance, a Long Short Term Memory Network is used. The findings demonstrate that PM 2.5 is predicted more accurately. This study is interesting because it can be used by government agencies, businesses, and citizens alike to make informed decisions.
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引用次数: 0
IMPACT OF SULPHUR DIOXIDE EXPOSURE ON PHOTOSYNTHETIC PIGMENTS IN VIGNA MUNGO 二氧化硫对豇豆光合色素的影响
Q4 Environmental Science Pub Date : 2023-01-01 DOI: 10.53550/pr.2023.v42i01.007
M. Bhardwaj, Jogander Singh, Anju Singh
The present studies carried out on Vigna mungo regarding impacts of SO2 exposure on photosynthetic pigments clearly revealed that sulphur dioxide has deleterious effects on different photosynthetic pigments. These effects had become more significant when the plants were exposed to higher doses of sulphur dioxide. During the present investigation four concentrations, i.e. 0.1, 0.3, 0.5 and 0.7 ppm of sulphur dioxide were taken in consideration and their impact on biochemical contents i.e chlorophyll ‘a’, chlorophyll ‘b’, total chlorophyll and carotenoids in Vigna mungo was studied. The observations obtained clearly revealed that a significant reduction was observed in photosynthetic pigments of Vigna mungo. This impact was of great extent in such plants which were exposed to 0.7 ppm of sulphur dioxide as compared to those exposed to lower concentration of sulphur dioxide. It was also observed that the impact was not only dose dependent but also age dependent.
目前在芒果(Vigna mungo)上开展的SO2暴露对光合色素影响的研究清楚地表明,二氧化硫对不同的光合色素都有有害影响。当植物暴露在更高剂量的二氧化硫中时,这些影响变得更加明显。本研究以0.1、0.3、0.5和0.7 ppm的二氧化硫浓度为研究对象,研究了不同浓度二氧化硫浓度对芒豆叶绿素a、叶绿素b、总叶绿素和类胡萝卜素等生化指标的影响。所获得的观察结果清楚地表明,芒戈的光合色素显著减少。与暴露于二氧化硫浓度较低的植物相比,暴露于0.7 ppm二氧化硫的植物受到了很大程度的影响。还观察到,影响不仅与剂量有关,而且与年龄有关。
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引用次数: 0
EFFECT OF LEATHER INDUSTRIAL EFFLUENT ON THE GERMINATION AND SEEDLING GROWTH OF SELECTED MEDICINAL PLANTS 皮革工业废水对部分药用植物发芽和幼苗生长的影响
Q4 Environmental Science Pub Date : 2023-01-01 DOI: 10.53550/pr.2023.v42i01.014
Hridhya M.J, C. Anitha
This study evaluated the effect of leather industrial wastewater on the germination and seedling development of three medicinal plants. Andrographis paniculata, Emilia sonchifolia and Tridax procumbens are the medicinal plants that were selected for this study. Leather tanning includes different procedures which required large quantities of water so the amount of wastewater production by this industry is dangerously high. Different steps in the tanning process like liming and chrome tanning and rechromming produce an immense amount of effluent water which contains many hazardous chemicals. the chemical contents present in the tanning industrial effluent is potential to cause a serious threat to the ecosystem. The current study is aimed to evaluate the effect of leather industrial effluents on the germination and seedling development of three selected medicinal plants. Before the germination experiment, the effluent sample collected from a leather industry located at Pullepady, Kochi Eranakulam. Kerala, India was analyzed for different chemical and physical parameters. After the analysis of effluent water, it was used to conduct a seed germination experiment on 3 test plants. The concentrations of effluent used were 10%, 20%, 40%, 60%, 80% and 100% distilled water was used as control after 7 days of germination treatment germination percentage, Vigour index, and Phytotoxicity were calculated. The study reveals that even at the lowest concentration effluent sample adversely affects all three selected medicinal plants, and the negative effects intensified as the concentration of the effluent sample increases. At 100 % concentrations, all three test plants failed to germinate. Emilia sonchifolia is found to be most sensitive to tanning industrial effluent compared to Andrographis paniculata and Tridax procumbens.
研究了皮革工业废水对三种药用植物发芽和幼苗发育的影响。本研究选用穿心莲、细毛莲和三叶草为研究对象。制革包括不同的程序,需要大量的水,所以这个行业产生的废水量是危险的高。制革过程中的不同步骤,如石灰化、铬鞣和再铬化,会产生大量含有许多有害化学物质的废水。制革工业废水中存在的化学成分有可能对生态系统造成严重威胁。本研究旨在评价皮革工业废水对三种药用植物发芽和幼苗发育的影响。在发芽实验前,采集了位于高知埃拉纳库拉姆市Pullepady的一家皮革工业的废水样本。对印度喀拉拉邦的不同化学和物理参数进行了分析。对出水进行分析后,在3株试验植物上进行种子萌发试验。发芽处理7 d后,以蒸馏水浓度为10%、20%、40%、60%、80%和100%为对照,计算发芽率、活力指数和植物毒性。研究表明,即使在最低浓度的出水样品也会对三种选定的药用植物产生不利影响,并且随着出水样品浓度的增加,负面影响会加剧。在100%浓度下,所有三种试验植物都无法发芽。与穿心莲和三叶草相比,对制革工业废水最为敏感。
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引用次数: 0
A NON-INVASIVE APPROACH TO DETECT HEAVY METAL POLLUTION IN COLUMBA LIVIA 一种无创检测耧菜重金属污染的方法
Q4 Environmental Science Pub Date : 2023-01-01 DOI: 10.53550/pr.2023.v42i02.005
Bhumesh Singh, Vipra Kohli, Shivani Sharma, Kalirajan ARUNACHALAM4, Sushma Gautam, Hitakshi, Ayati Narang, Neha Sharma
Heavy metals are considered as one of the potential threats to environment, with bioaccumulation and bio magnification the key outcomes. Birds have long been known to act as prospective bio-indicators by virtue of their mobility across distant locations. Current scope of study was to establish the efficacy of avian Pigeon feather as bio-indicator of heavy metal accumulation. Another approach was aimed to determine the correlation between the traffic density in locations and concentration of metal viz. Lead and Zinc in the avian feathers, the fact corroborated by significant lowering of pigeon population in urban clusters. Feathers collected from rural areas were found to have significantly less Lead and Zinc concentrations then those from urban environments of Jaipur District. Preliminary findings were indicative of exploring pigeon feathers as bio-prospective ecological monitors
重金属被认为是对环境的潜在威胁之一,其主要后果是生物积累和生物放大。长期以来,鸟类一直被认为是一种潜在的生物指示物,因为它们可以在遥远的地方移动。目前的研究范围是确定鸽羽作为重金属积累的生物指标的功效。另一种方法旨在确定地点交通密度与鸟类羽毛中金属(铅和锌)浓度之间的相关性,这一事实得到了城市集群中鸽子数量显著下降的证实。从农村地区收集的羽毛的铅和锌浓度明显低于斋浦尔地区的城市环境。初步研究结果表明,鸽子羽毛可作为生物前景的生态监测物
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引用次数: 0
ABIOTIC STRESS AS A POTENTIAL CONTRIBUTING FACTOR TO ONSET AND SEVERITY OF INFECTION CAUSED BY LASIODIPLODIA THEOBROME AN OPPORTUNISTIC FUNGAL PATHOGEN IN COCONUT 非生物胁迫对椰子中机会性真菌病原菌可可裂裂病发病和严重程度的影响
Q4 Environmental Science Pub Date : 2023-01-01 DOI: 10.53550/pr.2023.v42i02.013
V. Rao, N. C. Rao, C. Sreenivas, B. NEERAJA, A. KIREETI, G. KOTESWARAO, B.V.K. BHAGAVAN, B. Srinivasulu
Coconut palms irrigated with water from bore wells in close proximity with oil exploration rigs reported sudden death later to the drilling of oil wells only since January 2021 and 2017 in Billakurru village and Lanka of Thane Lanka village, respectively from erstwhile East Godavari district of Andhra Pradesh. Isolations from infected samples yielded weak pathogens which usually affect plants subjected to stress. Pathogenicity tests with the isolated cultures of organisms were not successful on actively growing tissues but could produce symptoms on detached tissues indicating their status as weak pathogens. Adhoc attempts with fungicides to manage the likely pathogenic origin were unsuccessful. Abiotic stress is a potential contributing factor to onset and severity of disease caused by Lasiodiplodia theobrome that causes leaf blight disease in coconut. Under stress conditions invasion of opportunistic phytopathogen leading the infection at the base of the petiole and necrosis resulted drooping and yellowing of leaves. The progression of infection to growth point leading the toppling of rotten crown and emitting foul smell. Other crop plants like banana, turmeric, sweet orange, rice, sapota, mango etc. were found healthy without any signs of stress at all in the fields in which coconut was affected. Chemical analyses of soil, water and plant samples are attributed to higher salt concentration in general and Al in particular. Higher concentration of salts (EC) and Al in soil, water and plant samples in affected fields than in healthy fields were detected with decreasing values with increasing distance from the oil wells.
在安得拉邦前东戈达瓦里地区的Billakurru村和Thane Lanka村,用石油钻井平台附近钻孔井的水灌溉的椰树后来报告说,自2021年1月和2017年1月以来,分别在Billakurru村和Lanka村突然死亡。从受感染的样品中分离出的弱病原体通常影响受胁迫的植物。用生物分离培养物进行的致病性试验在活跃生长的组织上不成功,但在离体组织上可能产生症状,表明其处于弱病原体状态。专门尝试使用杀菌剂来控制可能的致病源是不成功的。非生物胁迫是引起椰子叶枯病的可可叶枯病的发病和严重程度的潜在因素。在胁迫条件下,条件性病原菌入侵导致叶柄基部感染和坏死,导致叶片下垂、变黄。感染发展到生长点,导致腐冠倾倒,散发恶臭。其他作物,如香蕉、姜黄、甜橙、大米、仙人掌、芒果等,在椰子受影响的田地里都很健康,没有任何压力的迹象。土壤、水和植物样品的化学分析一般归因于较高的盐浓度,特别是铝浓度。影响区土壤、水体和植物样品中盐和铝的浓度均高于健康区,且随距油井距离的增加而降低。
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引用次数: 0
APPLICATION OF REMOTE SENSING AND GIS IN SITE SELECTION FOR SUSTAINABLE AQUACULTURE IN INDIA - A REVIEW 遥感和地理信息系统在印度可持续水产养殖选址中的应用综述
Q4 Environmental Science Pub Date : 2023-01-01 DOI: 10.53550/pr.2023.v42i02.009
C. N. Shaginimol, B. MANOJKUMAR, S. KALIRAJ
Non scientific and unplanned development in aquaculture has led to many controversies in the society and in other sectors of agriculture, and the sector has itself been affected adversely by many environmental problems. Scientific and sustainable development of aquaculture essentially needs better site selection. This paper briefly discusses the importance of proper site selection for sustainable aquaculture development. The requirement of a proper and systematic approach in data acquisition with high level of accuracy made remote sensing and GIS ideally suited for resource assessment and maintenance of the sustainability in aquaculture. The site selection in aquaculture is a complex task involving identification of the areas that are economically, socially and environmentally suitable, which can be available for aquaculture. Remote sensing combined with GIS is an effective tool in sustainable aquaculture development by providing information on land use and land cover, water quality, productivity, tidal influence and coastal infrastructure. In this paper we examine selected cases of site selection for aquaculture from India where remote sensing and GIS technologies are effectively used in sustainable aquaculture. The case studies reviews on the different GIS methods and criteria used depending on the area for site selection of aquaculture depending upon the type of pattern and the species used.
水产养殖业的不科学和无计划发展在社会和农业其他部门引起了许多争议,该部门本身也受到许多环境问题的不利影响。水产养殖的科学可持续发展本质上需要更好的选址。本文简要论述了合理选址对水产养殖可持续发展的重要性。由于需要采用适当和系统的高精度数据获取方法,遥感和地理信息系统非常适合用于资源评估和维持水产养殖的可持续性。水产养殖场址的选择是一项复杂的任务,涉及确定可用于水产养殖的经济、社会和环境适宜的地区。遥感与地理信息系统相结合,通过提供有关土地利用和土地覆盖、水质、生产力、潮汐影响和沿海基础设施的信息,是可持续水产养殖发展的有效工具。在本文中,我们研究了印度水产养殖选址的一些案例,在这些案例中,遥感和GIS技术有效地应用于可持续水产养殖。案例研究审查了不同地理信息系统的方法和标准,这取决于水产养殖选址的区域、模式的类型和所使用的物种。
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引用次数: 0
ACUTE TOXICITY AND BEHAVIORAL ALTERATIONS IN CHANNA PUNCTATUS AFTER EXPOSURE TO ETHION 接触乙硫磷后斑孔雀鱼的急性毒性和行为改变
Q4 Environmental Science Pub Date : 2023-01-01 DOI: 10.53550/pr.2023.v42i03.002
JAYANTA KUMAR SAHU, PRABEEN NAIK, RATIKANTA PRADHAN, RATNAKAR PARIDA, PURUSHOTTAM PATNAIK, BHABANI SABAT, SUBHASWETA MAHARANA, NARSINGH NAIK, SURAJ MANDAL, SURAJ MISTRY, PAPU BACHHAR, PRAJNA PARAMITA NAIK
Changes in a fish’s behaviour serve as an effective measure for detecting changes in the environment. Pesticide not only alters the physico-chemical properties of water but also has a major influence on fish behavioral changes triggered by any modification in the aquatic environment, eventually leading to physiological changes. As a result, the current study, investigated the behavioural changes produced by sub-acute exposure to the organophosphate pesticide Ethion in the freshwater fish Channa punctatus . To establish the LC 50 value, fish were exposed to Ethion at four sub-lethal concentrations: 0.001 ml/l, 0.002 ml/l, 0.003 ml/l, and 0.004 ml/ l for 96 hours. Fish were kept in four different conditions, i
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引用次数: 0
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Pollution Research
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