Use of different soft tissues ofPerna viridis as biomonitors of bioavailability and contamination by heavy metals (Cd, Cu, Fe, Pb, Ni, and Zn) in a semi-enclosed intertidal water, the Johore Straits

2006 ◽  
Vol 88 (4) ◽  
pp. 683-695 ◽  
Author(s):  
Chee Kong Yap ◽  
Ahmad Ismail ◽  
Franklin Berandah Edward ◽  
Soon Guan Tan ◽  
Siti Shapor Siraj
Keyword(s):  
Heavy Metals ◽  
Soft Tissues ◽  
Different Soft Tissues

Heavy metals accumulation in freshwater mussels (Lamellidens marginalis) as a biological monitor inhabiting in Dhanmondi Lake, Dhaka, Bangladesh.

2016 ◽  
Vol 5 (10) ◽  
pp. 4933
Author(s):  
Sabia Sultana ◽  
A. K. M. Nur Alam Siddiki ◽  
Md. Rokonujjaman ◽  
M. Niamul Naser ◽  
Abdus Salam ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Soft Tissues ◽  
Freshwater Mussels ◽  
Heavy Metal Concentration ◽  
Heavy Metal Concentrations ◽  
Heavy Metals Accumulation ◽  
Manganese Zinc ◽  
Metals Accumulation ◽  
Test Level

The heavy metal concentration (e.g., Mn, Zn, Pb and Ni) were determined in soft tissues and shells of freshwater mussels (Lamellidens marginalis) at the various sites of Dhanmondi lake, Dhaka, Bangladesh between the period April, 2010 and March 2011. The heavy metal concentrations in shells and soft tissues of freshwater mussels were tended to vary significantly among sampling points and seasons in Dhanmondi Lake. Distribution of heavy metals in shell and soft tissue of Lamellidens marginalis followed the order Mn>Zn>Pb>Ni, respectively. According to the t-test, level of manganese, zinc and lead under investigation between shell and tissue showed statistically significant differences [Mn: t=-11.387; df=16; P=0.000; Zn: t=-2.590; df=16; P=0.020 and Pb: t=-2.8679; df=16; P=0.011].

scholarly journals Use of Two Aquatic Snail Species as Bioindicators of Heavy Metals in Tigris River-Baghdad

2020 ◽  
pp. 1589-1592
Author(s):  
Harith Saeed Al-Warid ◽  
Hayder Z Ali ◽  
Ghassan Nissan ◽  
Abbas Haider ◽  
Ahmed Yosef
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Soft Tissues ◽  
Snail Species ◽  
Tigris River ◽  
The Mean ◽  
Mean Concentration ◽  
Bellamya Bengalensis

     Thirty individuals of Bellamya bengalensis and Physella acuta were collected and identified from the Tigris River in Baghdad during the period between October to November 2017. The efficiency of bioaccumulation of the two species as bioindicators for aquatic heavy metal pollution with Cd, Ni, Pb and Cu was investigated. Both snail species had the ability to accumulate heavy metals. The mean of Ni concentration in soft tissues of both snails was 1.53 ppm while the mean concentration of other heavy metals was significantly lower; they reached 0.51 ppm, 0.36 ppm and 0.29 ppm, respectively. While no significant differences between B. bengalensis and  P.acuta were noticed in the ability to accumulate the heavy metals. It is concluded that both snails shared the features of good bioindicators due to their sensitivity to pollution.:

scholarly journals To study the views of doctors on heavy metal poisoning in Mumbai.

2019 ◽  
Vol 7 (02) ◽  
Author(s):  
Suryabhan Shriram Dongre ◽  
Vidhyashree Thorat
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Soft Tissues ◽  
Free Form ◽  
Heavy Metal Poisoning ◽  
Metal Poisoning ◽  
Specific Alternative ◽  
Alternative Solutions ◽  
Type Response ◽  
Iron And Manganese

Aims and objectives: To study the views of Doctors on heavy metal poisoning in Mumbai      Material and methods: Heavy metals, like arsenic, lead, mercury, and others, are all around us. They’re in the ground we walk on, in the water we drink, and in the products we use every day. But high levels of most heavy metals can make you sick. While our bodies need small amounts of some heavy metals — such as  zinc, copper, chromium, iron, and manganese — toxic amounts are harmful. If our body's soft tissues accumulate too much of heavy metals, the resulting poisoning can cause serious damage. Though there are variety of medical uses of heavy metals, still each metal has its own side effects which disturb human health. We have to use  solid evidence that demonstrates the safety, efficacy, and effectiveness of specific alternative medicine . Also We have to study General biocompatibility (how metals react with human tissue) and Immunological biocompatibility (The adverse reaction due to an immunological  or allergic type response from metals). For the better study of heavy metal toxicity, we have carried out survey taking opinions of Doctors in Mumbai and Thane region. Observations: Commonly found views are  : In most of the medicines Doctors identify Lead as poisonous, Most of the metal poisoning cases occur accidentally, Ayurvedic medicines should be standardized by Ayurvedic parameters so that metals will not be in free form & never cause toxicity,  use of herbal preparations is the alternative to medicines containing metals. Conclusion: From the survey of heavy metal poisoning we conclude that there are herbal drugs which function as  the alternative solutions for the use of heavy metals , Other medicines can be used after the proper detoxification of heavy metals.

scholarly journals Seasonal effects of heavy metals on the date mussel Lithophaga lithophaga (Mollusca:Bivalvia) at Eastern harbor, Alexandria, Egypt

2020 ◽  
Vol 1 (1) ◽  
pp. 62-77
Author(s):  
Shahenaz M. Abd-Ellah ◽  
◽  
Soheir El-Sherif ◽  
Rehab El-Morshedy ◽  
◽  
...  
Keyword(s):  
Heavy Metals ◽  
Protein Content ◽  
Digestive Gland ◽  
Total Protein ◽  
Soft Tissues ◽  
Food Sources ◽  
Total Protein Content ◽  
Ultrastructural Studies ◽  
Different Tissues ◽  
Lithophaga Lithophaga

The edible mussel Lithophaga lithophaga is considered as one of the most important human food sources in Alexandria, Mediterranean Sea. The present study is designed to determine the seasonal bioaccumulation levels of Cd, Co and Pb in the whole soft tissues as well as different tissues of Lithophaga lithophaga. Results revealed that the seasonal bioaccumulation levels of Cd, Co and Pb in date mussel were below the permissible limits or other reported values from other regions of the Mediterranean. On the other hand, the order of metals accumulation level in different tissues was as follows: digestive gland>remaining soft tissues>gonads. The present study confirmed the role of digestive gland as a concentration center for heavy metals. Moreover, total protein content and stress protein responses of the whole soft tissues were evaluated. The total protein content was arranged in the following order: summer>autumn>spring>winter. Five novel stress proteins appeared in summer. The histological and ultrastructural studies of the digestive gland of Lithophaga lithophaga collected in summer and spring showed marked histopathological alternations.

TO THE QUESTION OF ACCUMULATION OF HEAVY METALS (Pb, Hg, As) IN THE COMPONENTS OF AQUATIC ECOSYSTEMS OF ESTUARINE AREA OF THE RED RIVER (VIETNAM)

2018 ◽  
pp. 132-140
Author(s):  
Irina Vladimirovna Volkova ◽  
Thi Thui Nhung Nguyen
Keyword(s):  
Heavy Metals ◽  
Bottom Sediments ◽  
Suspended Solids ◽  
Soft Tissues ◽  
Water Layer ◽  
High Water ◽  
Mouth Area ◽  
Red River ◽  
Estuarine Area ◽  
Physical Abilities

The paper focuses on the peculiarities of accumulating heavy metals (Pb, Hg, As) in the system "water - bottom sediments - mollusks" in the estuary of the Red river (Vietnam). The objectives established in the work were to determine concentration and accumulation of heavy metals in different components of the estuarine area of the Red river (water, suspended solids, sediments, soft tissues and intestines of shellfish) and to analyze the dynamics of heavy metals. The studies were conducted during the main hydrological seasons in 2014-2016 (high water and low water periods). The suspended Pb, Hg, As concentration in the waters of the mouth area of the Red river is maximum in the mouths of the arms and gradually decreases towards the sea. The distribution of Pb, Hg, As in suspended solids is characterized by a considerable unevenness, the maximum concentration of these elements was observed in the surface water layer on the river-sea frontier. According to the average values of the enrichment coefficient KSS/BS, the studied heavy metals arrange in the following order: Pb>Hg>As, i.e. the maximum contents of Hg and As in the mouth area of the Red river were observed in sediments, maximum content of Pb - in suspension. There has been found a mechanism of distributing heavy metals in different forms in sediments. Accumulating the studied heavy metals in mollusks Meretrix lyrata is uneaven, which is both stipulated by physical abilities of different body organs of the mollusks and movability of the metals. According to the content of heavy metals in the soft tissues and intestines of mollusks, heavy metals are distributed in the following order: As>Pb>Hg. Accumulation of Pb in the intestine is 3 times greater than in soft tissues, but accumulation of As and Hg in the intestine and soft tissues are almost identical. Mollusks take most heavy metals from the suspended matter and organic fraction of bottom sediments.

scholarly journals An Assessment of the Bivalve Perna viridis, as an Indicator of Heavy Metal Contamination in Paradise Point of Karachi, Pakistan

2016 ◽  
Vol 59 (3) ◽  
pp. 164-171
Author(s):  
Rashida Qari ◽  
Olufemi Ajiboye ◽  
Saima Imran ◽  
Abdul Rahim Afridi
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Contamination ◽  
Soft Tissues ◽  
Heavy Metal Contamination ◽  
Human Consumption ◽  
Perna Viridis ◽  
High Accumulation ◽  
Accumulation Of Metals ◽  
Mn Concentrations

The edible bivalves Perna viridis (green mussel), (n = 100) were analysed for their total Hg,Pb, Cu, Ni, Zn, Co, Fe, Cr, Cd, and Mn concentrations to indicate heavy metal contamination in ParadisePoint of Karachi coast using atomic absorption spectrophotometer. There are large seasonal variations inthe metal concentrations of Mn (0.025-0.67 µg/g), Fe (0.055-7.740 µg/g), Ni (0.004-0.52 µg/g), Hg (0.0001-0.004 µg/g), Zn (0.04-3.32 µg/g), Cu (0.008-1.66 µg/g), Pb (0.022-2.43 µg/g), Co (0.01-0.044 µg/g), Cd(0.04-0.88 µg/g) and Cr (0.13-1.20 µg/g) recorded in bodies/soft tissues of P. viridis obtained in the samplesof the year 1993 and 2012 at the Paradise Point of Karachi coast. The results of heavy metals are in thefollowing descending order of concentration in the samples collected in the year 1993: Fe>Cr>Zn>Mn>Pb>Cd>Cu>Ni>Co>Hg, while Fe>Zn>Pb>Cu>Cr>Cd>Mn>Ni>Co>Hg order was recorded in samplescollected in the year 2012. The high accumulation of metals was found mostly in the samples collectedin the year 2012 when compared with the samples of the year 1993. This is an indication that the areaunder study showed signs of being exposed to significant levels of heavy metal pollution due to directdischarge of industrial and domestic wastes along the coast. The concentrations of these heavy metals werelower than the permissible limits for human consumption. However, if this pollution persists, it can proveto be very detrimental in future.

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