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• The goal of this study was to determine the absorption of five toxic heavy metals (Lead, Cadmium, Mercury, Chromium, and Arsenic) in muscle tissues of eleven species of fish in the waters of Khuzestan province- Bandar Mahshahr.

Material and Methods: For this purpose, 66 fishes, with the typical market weight were randomly selected. After performing biometrics assessment on samples, the muscle tissue was removed. The amount of estimated daily intake (EDI), estimated weekly intake (EWI), maximum allowable consumption limit (Cr), maximum allowable meals consumed (CR) and adults and the hazard quotient of the consumption of these fishes with regard to non-cancerous diseases (THQ) for 11 species were calculated.

• The concentration of metals was lower in comparison with the standards of MAFF, NHMRC and WHO, but in some cases was higher than USEPA standard. The hazard quotient for non-cancerous diseases all eleven species less than one, and for lead, cadmium, mercury, chromium, and arsenic, was calculated to be 0.018, 0.0237, .0428, 0.1146, and 0.0295, respectively. Also, the total hazard index (HI) in this research was obtained to be 0.221.
• The analysis of the accumulation and consumption hazard of five heavy metals in eleven species under study from the coastal waters of Khuzestan- Bandar Mahshahr shows that although the consumption of these fishes any hazard to consumers in connection with their health, however, with regard to the amount of their consumption by pregnant women and children considerations must be complied with.

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Aims: The purpose of this study was to determine the lethal concentration (LC₅₀ 96h) - Butyl phthalate and Calculate of Low Observable Effect Concentration (LOEC) and Non Observable Effect Concentration (NOEC) on rainbow trout fingerlings.
Materials and Method: Acute static toxicity test was performed based on the standard O.E.C.D. 7.3±1.25g) in 96 hours. Statistical calculation was done with SPSS 21 and probit regression and ANOVA method.
Findings: Mortality was increased with increasing concentrations of - Butyl phthalate Within 24 to 96 hours. Lethal concentrations of 24, 48, 72 and 96 hours were 15.46, 12.96, 11.21 and 9.93mg.L-1, respectively. Observable Effect Concentration (LOEC) of 24, 48, 72 and 96 hours were 3.4, 3.8, 7.2 and 9.95mg.L-1, too. Non Observable Effect Concentration (NOEC) of 24, 48, 72 and 96 hours were 0.78, 0.95, 1.45 and 1.68mg.L-1, respectively.
Conclusion: Toxicological studies are necessary for rainbow trout because of their importance and sensitivity of this species to pollutants). The results of this research can be applied to assess the ecological risks and nutritional risks of this group of pollutants. So, an effective management and control strategy must be executed in order to reduce the problems caused by DnBP in the environment.

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Fish is one of the most important sources of protein for human nutrition and health. Therefore, the monitoring of heavy metals accumulation in commercial fish is always important. In the present study, the accumulation of heavy metals (copper and lead) in muscle tissue and their potential hazards for consumers in three species of high-consumption fish in the south of the country(BandarAbas), namely black-spot snapper (Lutjanus ehrenbergi), javelin grunter (Pomdasys Kaakan) and Indian halibut (Psettodes erumei) was examined. The average concentrations (µg/g dry weight) of copper snapper, grunter and halibut were 0.078±0.017, 0.136±0.025, and 0.127±0.013, respectively, while the accumulation of lead in them was 0.079±0.018, 0.090±023, and 0.107±0.031, respectively. The highest daily intake (µg/ kg body weight/ day) of copper was equal to 0.023 and due to consumption of grunter, while the highest daily intake of lead was obtained due to consumption of halibut and equal to 0.018. The daily and weekly intake of both metals and all three fish species was less than the EPA reference dose and tolerable intake (TDI) values provided by the FAO / WHO Joint Commission. The risk level of target hazard quotient (THQ) calculated for both metals was significantly lower than 1. The results showed that the urban communities of Hormozgan province with the calculated consumption are not exposed to any risk due to the accumulation of heavy metals studied in this study.
 

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To aim health risk assessment and determination of consumption rate limit of King soldier bream (Argyrops spinifer), Pickhandle Barracuda (Sphyraena jello), and Japanese threadfin bream (Nemipteru japonicus), 33 fish specimen was harvest from Jofre fishing area. After transport fish to the laboratory, was prepared and concentration of heavy metal iron, manganese, and cobalt was measured by Inductively coupled plasma - optical emission spectrometry, (ICP-OES). The Concentration of heavy metal in the muscle of fish compared with international standards.  For health risk assessment Target Hazard Quotients (THQ) and Total Target Hazard Quotients (TTHQ), for determination of consumption rate limit estimated daily intake (EDI) and estimated weekly intake (EWI), Consumption Rate Limit (CRlim) and Consumption Rate Limit meal month (CRmm) in two groups include adults and children were calculated.  The Results showed that manganese content in all three fish species (36.59 to 55.48 µgr/gr) more than the world health organization (WHO) and the United States Environmental Protection Agency (USEPA). Also Cobalt content in Argyrops spinifer and Sphyraena jello (66.62 and 0.38 µgr/gr) more than WHO. According to THQ, TTHQ, EDI, and EWI, the Consumption of none of the three fish species had not health risk for the consumer. Additional to the highest CRlim in adults and children determinate as in Argyrops spinifer and Sphyraena jello was manganese, respectively (10.12 and 2.17 µgr/gr), (29.36 and 6.29 µgr/gr) and in Nemipteru japonicus (184.25 and 39.48 µgr/gr) Cobalt determinate.