Risk assessment of organochlorine pesticides in seaweeds along the Gulf of Mannar, Southeast India

Sundhar, Shanmugam; Shakila, R. Jeya; Jeyasekaran, G.; Aanand, S.; Shalini, R.; Arisekar, Ulaganathan; Surya, Thamizhselvan; Malini, Narayanan Asha Hema; Boda, Sathyanarayana

doi:10.1016/j.marpolbul.2020.111709

Cited by 24 publications

(5 citation statements)

References 21 publications

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“…Then, it was ramped to 280 °C at a rate of 5 °C/min and held for 3 min” [ 265 ] Tree bark 3.85 × 10 −5 –0.0131 51–98 [ 318 ] Seaweed 20 0.001–0.004 0.005–0.017 72–120 <12 HPLC: “The column temperature was maintained at 35 °C″ [ 19 ] seaweeds 17 1 80–108 GC-MS: “initial oven temperature at 90 °C for 0.5 min, which was then increased to 280 °C at 8 °C min-1 and again to 300 °C at 15 °C min-1 for 2.5 min. RT: 13.65–22.74 min” [ 319 ] wheat 15 0.02–0.03 0.010–0.05 80–92 2–8 GC-MS: “initial 30 °C (2 min hold), ramped to 180 °C at 15 °C/min, ramped to 190 °C at 2 °C/min, ramped to 290 °C at 2.5 °C/min, and ramped to 320 °C at 5 °C/min (15 min hold)” [ 320 ] Olive oil 10 0–3.25 Pg a IDL: 0.04 Pg a 0–9.087 Pg a 83–117 GC-MS: “The oven temperature analysis was as follows: the furnace was kept at 80 °C for 1 min and then, increased to 300 °C with 20 °C/min” [ 321 ] Tap water, river water, palm oil mill effluent Endosulfsn, dieldrin 0.0073, 0.0086 0.022, 0.025 98.6-1-3.5 4.61–6.79 GC-ECD: “The oven was temperature-programed from 120 °C to 190 °C at 40 °C/min, then to 285 °C...…”

Section: Results and Discussion: Literature Reviewmentioning

confidence: 99%

Review of scientific literature on available methods of assessing organochlorine pesticides in the environment

Ohoro,

Wepener

2023

Heliyon

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Section: Results and Discussion: Literature Reviewmentioning

confidence: 99%

Review of scientific literature on available methods of assessing organochlorine pesticides in the environment

Ohoro,

Wepener

2023

Heliyon

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“…In contrast to macroalgae's benefits in human and animal health, several reports have made consistent algae's capacities for heavy metal and toxic compound accumulations. The marine ecosystems are exposed to organic and inorganic contaminants such as polycyclic aromatic hydrocarbons, organochlorine pesticides, and heavy metals [44]. Therefore, the monitoring of micropollutants in algae has demonstrated a crucial relationship between contaminant concentration and the macroalgae specie and morphology.…”

Section: Monitoring Of Nutritional Profile and Bioactivities Of Macro...mentioning

confidence: 99%

New Perspective for Macroalgae-Based Animal Feeding in the Context of Challenging Sustainable Food Production

González-Meza,

Elizondo-Luevano,

Cuellar-Bermudez

et al. 2023

Plants

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Food production is facing challenging times due to the pandemic, and climate change. With production expected to double by 2050, there is a need for a new paradigm in sustainable animal feed supply. Seaweeds offer a highly valuable opportunity in this regard. Seaweeds are classified into three categories: brown (Phaeophyceae), red (Rhodophyceae), and green (Chlorophyceae). While they have traditionally been used in aquafeed, their demand in the feed market is growing, parallelly increasing according to the food demand. Additionally, seaweeds are being promoted for their nutritional benefits, which contribute to the health, growth, and performance of animals intended for human consumption. Moreover, seaweeds contain biologically active compounds such as polyunsaturated fatty acids, antioxidants (polyphenols), and pigments (chlorophylls and carotenoids), which possess beneficial properties, including antibacterial, antifungal, antiviral, antioxidant, and anti-inflammatory effects and act as prebiotics. This review offers a new perspective on the valorization of macroalgae biomass due to their nutritional profile and bioactive components, which have the potential to play a crucial role in animal growth and making possible new sources of healthy food ingredients.

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“…4). The variability in the level of pesticide uptake by seaweed has been reported to be related to the biochemical composition of the algae, especially its lipid content, the affinity toward OCPs, the fruiting season, and other physical and chemical conditions of the marine environment (Sundhar et al 2020). Notably, the biological sensitivity of seaweed to chemical pollutants is specific to the species (Lytle and Lytle 2001).…”

Section: Levels Of Ocps In the Seaweed Species Analyzedmentioning

confidence: 99%

Seaweed as bioindicators of organic micropollutants polycyclic aromatic hydrocarbons (PAHs) and organochlorine pesticides (OCPs)

Zokm

Ismail

Okbah

2022

Environ Sci Pollut Res

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This study highlights the role of seaweed as important indicators of pollutants as they respond immediately to change in water chemistry and have high survival capabilities. Concentration and risk assessment of 13 polycyclic aromatic hydrocarbons (PAHs), as well as 20 organochlorine pesticides (OCPs), were examined in the seaweed from El-Mex Bay, Mediterranean Sea during spring and autumn seasons. The green alga Ulva compressa had a maximum ability to accumulate both PAHs and OCPs. In general, the content of the tested micropollutants in the collected seaweed is correlated to their species, morphology, concentration, and nature of pollutant. Naphthalene (NAP) and benzo a pyrene were the predominant polycyclic aromatic hydrocarbons in all species with mean concentrations of 68.57 and 56.14 ng g−1, respectively. The results of the current study showed that the contribution of the different fractions of PAHs from the total concentration was as follows: fossil-fuel derived polycyclic aromatic hydrocarbons (∑PAHF; 49.32%) > combustion-derived polycyclic aromatic hydrocarbons (PAHCOMB; 30.83%) > carcinogenic fractions (PAHCARC; 19.86%). A maximum PAHCARC (30.38%) was recorded in Ulva fasciata. For OCPs, the presence of 1,1-dichloro-2, 2-bis (4-chlorophenyl) ethane (DDD) (ND-27.8 ng g−1) rather than DDT; 1,1,1-trichloro-2, 2-bis (4-chlorophenyl) ethane was an indication for biotransformation involving the reductive dichlorination of DDT to more recalcitrant and toxic DDD. Endrin ketone has the highest mean hazard quotient (0.376). The cancer risk values of most PAHs and OCPs were in the range from 10−4 to 10−3 recommending precautionary measures. The results explained that the present algal species play a vital role in the uptake of organic pollutants and act as biomarkers for micropollutants in the ecosystem.

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Risk assessment of organochlorine pesticides in seaweeds along the Gulf of Mannar, Southeast India

Cited by 24 publications

References 21 publications

Review of scientific literature on available methods of assessing organochlorine pesticides in the environment

Review of scientific literature on available methods of assessing organochlorine pesticides in the environment

New Perspective for Macroalgae-Based Animal Feeding in the Context of Challenging Sustainable Food Production

Seaweed as bioindicators of organic micropollutants polycyclic aromatic hydrocarbons (PAHs) and organochlorine pesticides (OCPs)

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