The Study of Some Heavy Metals (Lead, Nickel, Zinc, Copper and Iron) in Muscle Tissue of Blue Swimming Crab Portunus pelagicus in Some Areas of the Hormozgan Province, Iran

This paper analyses manganese content in the air, in the soil and in the vegetative parts of seven tree species at seven localities. Soil and plants contaminated by heavy metals can cause environmental risk and cause health problems. Heavy metals are substances which signalize environmental pollution. Within the study of other heavy metals (lead, nickel, zinc and iron), manganese content was analyzed in some tree species depending on the concentrations of manganese in the soil and air in the National Park "Fruska Gora", along the road M-21.

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Feasibility of Remediation Lead, Nickel, Zinc, Copper and Cadmium Contaminated Groundwater by Calcium Sulfide

10.20944/preprints202108.0255.v1 ◽

2021 ◽

Author(s):

Chin-Yuan Huang ◽

Pei-Cheng Cheng ◽

Jih-Hsing Chang ◽

Yu-Chih Wan ◽

Xiang-Min Hong ◽

...

Keyword(s):

Heavy Metals ◽

Removal Efficiency ◽

Groundwater Remediation ◽

Contaminated Groundwater ◽

Lead Removal ◽

In Situ Stabilization ◽

Nickel Zinc ◽

Heavy Metals Contamination ◽

Lead Nickel

Heavy metals contamination in groundwater often occurs in various industrial processes. Stud-ies have confirmed that polysulfide could reduce hexavalent chromium to trivalent chromium, achieving the effect of in-situ stabilization. For other heavy metals contamination in groundwa-ter, whether polysulfide also had a stabilizing ability to achieve in-situ remediation. This re-search focused on heavy metals except for chromium that often contaminated in groundwater, including lead, nickel, zinc, copper, and cadmium to explore the feasibility of using calcium polysulfide (CaSx) as an in-situ stabilization technology for these heavy metals contamination groundwater. Results showed that CaSx had a great removal efficiency for heavy metals lead, nickel, zinc, copper, and cadmium. However, for nickel, zinc, copper and cadmium, when CaSx was added excessively, complexes would be formed, causing the result of re-dissolve and this would also reduce the removal efficiency. Since it is difficult to accurately control the dosage of agents for in-situ groundwater remediation, the concentration of re-dissolved nickel, zinc, cop-per, and cadmium may not be able to meet the groundwater control standards. CaSx had high lead removal efficiency, and it would not cause re-dissolution due to excessive CaSx dosing. CaSx can be used as an in-situ stabilization technique for lead contaminated groundwater.

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Marine Quality Standards: Their Derivation and Application in the United Kingdom

Water Science & Technology ◽

10.2166/wst.1985.0213 ◽

1985 ◽

Vol 17 (6-7) ◽

pp. 1187-1198 ◽

Cited By ~ 1

Author(s):

G. Mance ◽

A. R. O'Donnell

Keyword(s):

Coastal Waters ◽

Sublethal Effects ◽

Quality Standards ◽

Toxicity Data ◽

Marine Life ◽

Nickel Zinc ◽

The United Kingdom ◽

The Common ◽

Lead Nickel ◽

The Impact

This paper discusses the derivation of environmental quality standards for coastal waters and the difficulties of using such standards for controlling industrial discharges. Attention is focused on the common List II substances, copper, chromium, lead, nickel, zinc and arsenic - and their effects on marine life. The adequacy of existing toxicity data is discussed and it is concluded that long exposure tests are required to provide information on sublethal effects. Such data are currently limited. It is also important that consideration be given to the effects that reducing salinities and increasing temperatures have in increasing the toxicity of these substances. The complexity of interpreting the results of laboratory toxicity data to coastal waters is discussed with reference to a study of the impact of an industrial discharge.

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Dietary nutrients and health risks from exposure to some heavy metals through the consumption of the farmed common carp (CYPRINUS CARPIO)

Journal of Environmental Health Science and Engineering ◽

10.1007/s40201-021-00647-4 ◽

2021 ◽

Author(s):

Halyna Tkachenko ◽

Natalia Kurhaluk ◽

Olha Kasiyan ◽

Piotr Kamiński

Keyword(s):

Heavy Metals ◽

Common Carp ◽

Muscle Tissue ◽

Cyprinus Carpio ◽

Health Hazard ◽

Daily Intake ◽

Carcinogenic Risk ◽

Toxic Heavy Metals ◽

Dietary Nutrients ◽

Target Hazard Quotients

AbstractCommon carp (Cyprinus carpio) is one of the most important cultured fish species in Poland. The aims of our study were to determine the concentration of essential minerals in the muscle tissue of carp obtained from a pond culture and to compare the content of these minerals with the physiological norms of nutrition for the Polish population, Recommended Dietary Allowances (RDA), and Estimated Average Requirements (EAR). The non-carcinogenic and carcinogenic risk by assessment of the Estimated target hazard quotients (THQ), total target hazard quotients (ΣTHQ), and carcinogenic risk were also studied. The muscle tissue of the carp was rich in macroelements. The pattern significance gradation of element concentrations was as follows: Na > K > Ca > P > Mg > Al > Zn > Fe > Cu > Mn > Cr > Se > Co. The concentration of toxic heavy metals in the samples was lower than the maximum allowable level of metals in food products. The risk of consumption of toxicants by an adult at a daily intake of 100 g of fish was 1.45% for Pb, 0.1% for Hg, 0.02% for Cd, and 0.02% for As, compared to the allowable daily intake for each toxicant. The value of the target hazard quotients of each metal was less than 1, indicating that the intake of a single metal through the consumption of carp meat does not pose a considerable health hazard. The total value of the target hazard quotients was also less than 1, indicating the safety of the combined effects of the chemicals. The major risk contributor was Pb with 82.9%, followed by Hg (9.38%), As (6.43%), and Cd (1.29%).

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Inhibition of methanogenesis in pure cultures by ammonia, fatty acids, and heavy metals, and protection against heavy metal toxicity by sewage sludge

Canadian Journal of Microbiology ◽

10.1139/m87-093 ◽

1987 ◽

Vol 33 (6) ◽

pp. 551-554 ◽

Cited By ~ 71

Author(s):

Ken F. Jarrell ◽

Michelle Saulnier ◽

Art Ley

Keyword(s):

Heavy Metals ◽

Fatty Acids ◽

Heavy Metal ◽

Sewage Sludge ◽

Metal Toxicity ◽

Heavy Metal Toxicity ◽

Methanosarcina Barkeri ◽

Methanospirillum Hungatei ◽

Nickel Zinc ◽

Pure Cultures

The effect of ammonium chloride, sodium butyrate, sodium propionate, and the heavy metals nickel, zinc, and copper on methanogenesis by pure cultures of Methanospirillum hungatei, Methanosarcina barkeri, Methanobacterium thermoautotrophicum, and Methanobacterium formicicum at pH 6.5 was studied. The latter three strains were resistant to > 60 g/L of the volatile fatty acids and to > 10 g/L of NH3 N. Methanospirillum hungatei was somewhat more sensitive with 50% inhibition of methanogenesis occurring at 4.2 g/L NH3 N, 27 g/L butyrate, and 41 g/L propionate. All strains were very sensitive to both copper (1–5 mg/L) and zinc (1–10 mg/L), but much more resistant to nickel. Zinc and copper concentrations 30 to 270 times higher were required to cause inhibition of Msp. hungatei incubated in sewage sludge compared with buffer, indicating a strong protective environment was afforded the methanogens against heavy metal toxicity in the sludge.

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