BSD Extent, an Index for Metal Pollution Screening Based on the Metal Content within Digestive Cell Lysosomes of Mussels as Determined by Autometallography

1997 ◽  
Vol 37 (2) ◽  
pp. 141-151 ◽  
Author(s):  
Manu Soto ◽  
Ionan Marigómez
Keyword(s):  
Metal Pollution ◽  
Metal Content ◽  
Digestive Cell

scholarly journals Analysis of the Impact of Rural Households’ Behaviors on Heavy Metal Pollution of Arable Soil: Taking Lankao County as an Example

2018 ◽  
Vol 10 (12) ◽  
pp. 4368 ◽  
Author(s):  
Shixin Ren ◽  
Erling Li ◽  
Qingqing Deng ◽  
Haishan He ◽  
Sijie Li
Keyword(s):  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Metal Content ◽  
Rural Households ◽  
Pollution Index ◽  
Arable Soil ◽  
Heavy Metal Content ◽  
Pollution Level ◽  
Single Factor

As heavy metal pollution of arable soil is a significant issue concerning the quality of agricultural products and human health, the rural households’ behaviors have a direct impact on heavy metal content in arable soil and its pollution level, but only a few researches have been done at such microscopic scale. Based on 101 field questionnaires of rural households in Lankao County and the monitoring data on heavy metal of arable soil of each rural household, the kind of rural households’ behaviors which impose obvious influence on heavy metal content of arable soil are investigated via single-factor pollution index, Nemerow pollution index and econometric model in this study. The results show that, rural households’ land utilization mode affects heavy metal content in soil, e.g., the degree of heavy metal pollution of soil for intensive planting is higher than that of traditional planting, viz. vegetable greenhouse > garlic land > traditional crop farmland. The management of cultivated land with due scale is beneficial to reducing heavy metal content in soil, that is, the land fragmentation degree is in direct proportion to heavy metal content in soil, so rural households are encouraged to carry out land circulation and combine the patch into a large one. Excess application of fertilizer, pesticide and organic fertilizer will lead to heavy metal pollution of soil, while agricultural technical training organized by government department and the foundation of agricultural cooperative can promote the technical level and degree of organization of rural households and enable them to be more scientific and rational in agrochemicals selection and application, hence reducing or avoiding heavy metal pollution of soil. Single factor pollution level of heavy metal in the soil for planting various crops is different, so it is recommended to prepare various pollution reduction programs for different land types and pollution levels for the harmony and unity of human-nature system.

scholarly journals Water striders (Heteroptera, Gerridae) as bioindicators of heavy metal pollution

1997 ◽  
Vol 8 (4) ◽  
pp. 185-191 ◽  
Author(s):  
Martin Lodenius ◽  
Matti Nummelin ◽  
Esa Tulisalo
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Pollution ◽  
Metal Content ◽  
Dry Weight ◽  
Determination Limit ◽  
Water Strider ◽  
Steel Factory ◽  
Water Striders ◽  
Metal Contents

Heavy metal contents of water striders collected near a steel factory and from control sites were analyzed by AAS. The average concentrations µg/g of dry weight found near the factory vs. the control areas were: Al 76, 65; Fe 840, 330; Mn 49, 37; Zn 310, 280; Cu 44, 42; Cd 1.6, 6.5, respectively. In most cases Ni and Pb concentrations were below the determination limit in both sites. There were significant differences between sites in the concentrations of iron and cadmium. Fifth instar larvae had higher iron content than adults, but sexes did not differ in heavy metal content. There were also significant differences between different water strider species as accumulators of zinc, aluminium and cadmium. It is concluded that water striders seem suitable as bioindicators of heavy metals.

Assessing Metal Content in Halophila stipulacea Seagrass as an Indicator of Metal Pollution in the Northern Gulf of Aqaba, Red Sea

2021 ◽  
Author(s):  
Tariq Al-Najjar ◽  
Mohammad Wahsha ◽  
Mwaffaq Al-Khushman ◽  
Maroof Khalaf ◽  
Kyle Hardage ◽  
...  
Keyword(s):  
Red Sea ◽  
Metal Pollution ◽  
Metal Content ◽  
Gulf Of Aqaba ◽  
Halophila Stipulacea

scholarly journals Environmental Status of a City Based on Heavy Metal Content of the Tree-Rings of Urban Trees: Case Study at Szeged, Hungary

2019 ◽  
Vol 12 (1-2) ◽  
pp. 13-22
Author(s):  
Tímea Kiss ◽  
István Fekete ◽  
Ibolya Tápai
Keyword(s):  
Heavy Metal ◽  
Tree Rings ◽  
Environmental Conditions ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Metal Content ◽  
Heavy Metal Content ◽  
Urban Trees ◽  
Dust Particles ◽  
The Town

Abstract Urban vegetation, especially urban trees could act as ecological archives, as they reflect various elements of their environment. The main aim of the study is to evaluate the spatial and temporal variations of environmental conditions in the city of Szeged (Hungary) based on long-term monitoring of the heavy metal content of tree-rings (soft wood). In general, the living conditions of the urban trees (and other organisms as well) at Szeged was the worst in 2001/05, when the heavy metal pollution was the greatest, therefore the biomass production of the sampled trees decreased. Fortunately, the environmental conditions became better, only there are some points in the industrial area, where the heavy metal pollution of the environment is gradually increases. The temporal change in lead pollution (considerable decline in 2013/17) could be explained by the obligatory usage of lead-free petrol since 1999 and the diversion of through-traffic from the town (2011). The introduction of unleaded petrol had delayed favourable results, as the dust particles containing lead probably circulated in the air for a while before they were gradually become fixed in the soil or they were washed out from the town during heavy rains. The cadmium pollution also declined after the traffic diversion, as it is connected to the usage of brake-linings. Whilst the lead and cadmium content of the tree-rings decreased during the studied decades, the trees accumulated increasing amount of zinc throughout the studied periods, as this element could be up-taken from the ground-water, as the larger the canopy of a tree the denser and deeper its root system is.

scholarly journals Pengaruh Aktivitas Antropogenik Terhadap Kualitas Air, Sedimen dan Moluska di Danau Maninjau, Sumatera Barat.

2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Muhamad Suhaemi Syawal, Yusli Wardiatno Dan Sigid Hariyadi
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Heavy Metal ◽  
Lake Water ◽  
Water Body ◽  
Metal Pollution ◽  
Metal Content ◽  
River Estuary ◽  
Anthropogenic Pollution ◽  
Average Concentration

ABSTRAKTelah dilakukan penelitian dengan tujuan untuk mengkaji pengaruh pencemaran dari lingkungan antropogenik terhadap kondisi kualitas air, sedimen dan moluska di perairan Danau Maninjau. Danau Maninjau adalah salah satu danau yang terletak di Kabupaten Agam Sumatera Barat. Tipe danau ini adalah danau tekno vulkanik yang terbentuk oleh aktivitas vulkanik. Isu pencemaran air danau merupakan isu utama dalam pemanfaatan dan pengembangan kawasan danau, di daerah manapun. Kegiatan penduduk di sekitar danau yang cenderung bersifat produktif  pada umumnya otomatis menghasilkan limbah buangan hasil proses produksi. Penelitian ini dilakukan selama 3 (tiga) kali dari bulan Maret-September 2015 di 7 (tujuh) titik lokasi muara sungai di sekitar D. Maninjau yang berpotensi masuknya bahan pencemar. Hasil yang diperoleh menunjukkan konsentrasi rata-rata TP pada air berkisar 0,0245-0,2117 mg L-1; TN 0,5085-1,2292 mg L-1; O-PO4 0,0206-0,2241 mg L-1 dan NO3 0,0841-1,0618 mg L-1. Kandungan logam rata-rata pada sedimen Fe 1,1733-3,5733 mg kg-1; Pb 0,0037-11,230 mg kg-1; Cd 0,0050-0,0193 mg kg-1; Hg 0,00056-0,05914 mg kg-1; dan Cr tidak terdeteksi atau dibawah 0,004 mg kg-1. Sementara untuk rata-rata logam berat pada moluska Fe 0,04-0,948 mg kg-1; Pb 0,002-4,17 mg kg-1; Cd 0,013-1,032 mg kg-1; Cr 0,040-0,098 mg kg-1; dan Hg 0,0004-0,1062 mg kg-1. Dari hasil analisis data yang diperoleh menunjukkan ada dugaan telah terjadi pencemaran logam berat pada sedimen dan  moluska di muara-muara sungai yang masuk langsung ke badan perairan Danau Maninjau. Kata kunci :antropogenik, danau maninjau,kualitas air, moluska, sedimen, ABSTRACTHas conducted research with the aim to study the effect of anthropogenic pollution of the environment on the condition of water quality, sediment and molluscs in the waters of Lake Maninjau. Maninjau is one lake located in Agam regency of West Sumatra.Type this lake is techno volcaniclake formed by volcanic activity.The issue of pollution of the lake water is a major issue in the utilization and development of the area of the lake, in any area. Activity of the population around the lake tends to be productive in general automatically generates waste from the production process results. This study was conducted over three (3) times from March-September 2015 in seven (7) locations of river estuaries around D. Maninjau potential influx of contaminants.The results showed the average concentration of TP in water ranging from 0.0245 to 0.2117 mg L-1; TN 0.5085 to 1.2292 mg L-1; O-PO4 from 0.0206 to 0.2241 mg L-1 and NO3 0.0841 to 1.0618 mg L-1. The average metal content in the sediment Fe 1.1733 to 3.5733 mg kg-1; Pb 0.0037 to 11.230 mg kg-1; Cd 0.0050 to 0.0193 mg kg-1; 0.00056 to 0.05914 mg Hg kg-1; and Cr undetectable or below 0.004 mg kg-1. As for the average heavy metals in mollusks Fe 0.04 to 0.948 mg kg-1; Pb 0.002 to 4.17 mg kg-1; Cd 0.013 to 1.032 mg kg-1; Cr 0.040 to 0.098 mg kg-1; and Hg from 0.0004 to 0.1062 mg kg-1. From the analysis of the data obtained showed no allegation has been going on heavy metal pollution in the sediment and molluscs in a river estuary that goes directly into the water body of Lake Maninjau. The purpose of this study was to examine the influence of anthropogenic pollution of the environment on the condition of water quality, sediment and molluscs in the waters of Lake ManinjauKeywords: anthropogenic, Lake Maninjau, molluscs, sediment, water quality

scholarly journals KADAR LOGAM BERAT MERKURI (Hg) PADA KERANG HIJAU DI PURWOKERTO KABUPATEN BANYUMAS TAHUN 2018

2019 ◽  
Vol 38 (2) ◽  
pp. 199-203
Author(s):  
Riska Auliyah ◽  
Tri Marthy Mulyasari ◽  
Bayu Chondro Purnomo
Keyword(s):  
Water Pollution ◽  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Pollution ◽  
Metal Content ◽  
Sea Water ◽  
Negative Impact ◽  
Pollution Prevention ◽  
Descriptive Research ◽  
Metal Materials

Along with the increasing of industry in indonesia and the use of various heavy metal materials can have a negative impact one of it is the water pollution by mercury (Hg) heavy metal. Sea water pollution has a very serious impact for the humans, especially who consume sea biota that is come from contaminated waters region. Sea biota that can be used as an indicator of heavy metal pollution is the shellfish. The purpose of this research is to determine the amount of heavy metal mercury (Hg) in the green shells that is sold in Purwokerto Banyumas Regency. The kind of this research is descriptive research. Green shells (pema viriois) samples that are inspected 3 samples. The respondent of this research are green shell seller at Puwokerto Banyumas regency as much as 3 respondents. The Inspection of mercury heavy metal content on green shell using SSA method at The Great Hall of Industry Pollution Prevention Technology  (BBTPPI ) Semarang. The Result of merkury (Hg) heavy metals measurement from the green shellfish sample at DK seller 0,022 mg / kg,  DKR seller 0,022 mg / kg, and SHS seller 0,021 mg / kg The green shell of DK sample is taken from Alam Indah Beach at Tegal, DKR sample is taken from Kartini sea at Jepara, and SHS sample is taken from Widuri sea Pemalang. The result of  respondent knowledge about the danger of mercury (Hg) on the green shell is 28% of Mr A sample respondents, 24% of Mr B respondents and 42% of Mrs C respondents. The researcher  concluded that the amount of mercury (Hg) heavy metal on 3 samples of green shell has fulfilled the requirements of the Obal and Food Supervisory Agency of the Indonesian Republic No.HK.00.05.1.52.4011 Year 2009 about the deermination of the maximum contamination limit of microbial and chemical in thr food that is 1.0 Ppm or mg / kg

Reconstructing the History of Heavy Metal Pollution by Tree-Ring

2012 ◽  
Vol 610-613 ◽  
pp. 1109-1112
Author(s):  
Xiao Guang Zhao ◽  
Zhi Gui Huang ◽  
Yang Yang ◽  
Le Yao
Keyword(s):  
Heavy Metal ◽  
Tree Ring ◽  
Tree Rings ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Time Distribution ◽  
Metal Content ◽  
Heavy Metal Content ◽  
Gold Mine ◽  
History Of

This article is based on gold-mine. Analyzing the correlation of heavy metal content between tree rings and soil. Through the distribution of heavy metal content in the trees inverse the process of heavy metal pollution in soil. Discussing the time distribution of heavy metal pollution.

Study of The Pharmacological Activity and Heavy Metal Content of Eichhornia Crassipes Extract

2019 ◽  
Vol 2 (2) ◽  
pp. 91-95 ◽  
Author(s):  
Jimmy Jimmy ◽  
Diah Indriani Widiputri ◽  
Paulus Gunawan
Keyword(s):  
Heavy Metal ◽  
Pharmacological Activity ◽  
Water Hyacinth ◽  
Metal Content ◽  
Eichhornia Crassipes ◽  
High Light Intensity ◽  
Milling Process ◽  
Heavy Metal Content ◽  
Solvent Ratio ◽  
Negative Impacts

Eichhornia crassipes is well-known as water hyacinth. Water hyacinth grows rapidly in the nutrient-rich water and high light intensity places. The uncontrollable growth of water hyacinth has caused many negative impacts to the environment. For instance, interrupted water transport and decreased population of aquatic lives. The capacity of utilising water hyacinth is slower than water hyacinth growth and water hyacinth is still considered as a threat to theecosystem. This work was focused on the study of the pharmacological activity and heavy metal content of water hyacinth in Lake Cipondoh, Tangerang. Fresh water hyacinth was pre-treated through oven-drying and milling process. After that, each part of the plant was macerated by using multiple extraction method with 96% ethanol/water and three variations of sample-to-solvent ratios (1:30, 1:50, and 1:75 w/v). The result of the experiment showed thatwater hyacinth leaves produced an extract with lowest IC 50 (55.76 ± 6.73 ppm) compared toother parts. The most optimum solvent used to achieve this result was 96% ethanol/water (1:1 v/v). In order to obtain the lowest antioxidant activity, the sample to solvent ratio used was 1:50 and the heavy metal in the extract was very low. With this result, it was concluded that there is a promising opportunity to apply the water hyacinth growing in Lake Cipondoh, Tangerang as herbal medicine ingredient. Through this utilization, the overall number of water hyacinth in Indonesia can be reduced or at the least be controlled, so that the environmental problem caused by this plant can be minimized.

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