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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.12
- 수록면
- 101 - 110 (10page)
이용수
초록· 키워드
오류제보하기
Toxicity assessment using microalgae adopted various endpoint measurements like mortality rate, photosynthetic activity, chlorophyll content, enzymatic activity, cell density, <SUP>14</SUP>C assimilation, and phosphate uptake. These algal toxicity tests usually require 3-4 days of exposure time and laborious work to measure these endpoints parameters. In the present study, we described a simple and rapid toxicity assessment procedure using photosynthetic oxygen evolution as an endpoint measurement to determine heavy metal-induced toxicity. Oxygen evolution in gaseous phase was measured over a 12 h exposure time. The toxicity of six selected heavy metals was assessed. Concentrations of 1.02, 1.91, 0.46, 3.2, 7.5, and 65.6 mg/L were obtained as EC<SUB>50</SUB> values for mercury, silver, cyanide, copper, cadmium, and hexavalent chromium, respectively, for microalgae (Chlorella vulgaris). Our results demonstrated that hexavalent chromium is less sensitive depending on the conditions (low exposure time, pH 6, and high initial biomass). Toxicities in decreasing order of strength were cyanide > mercury > silver > copper > cadmium > hexavalent chromium. Results obtained in the current and earlier studies demonstrate that photosynthetic oxygen evolution offers an alternative endpoint measurement to assess toxicity since it allows sensitive and rapid detection of heavy metal-induced toxicity in water.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (66)
참고문헌 신청
Singh J, Kalamdhad AS. Effect of heavy metals on soil, plants human health and aquatic life. Int. J. Res. Chem. Environ. 2011;2:15-21.
Raza M, Hussain F, Lee JY, Shakoor MB, Kwon KD. Groundwater status in Pakistan: A review of contamination, health risks, and potential needs. Crit. Rev. Environ. Sci. Technol. 2017;47: 1713-1762.
Shakoor MB, Nawaz R, Hussain F, et al. Human health implications, risk assessment and remediation of As-contaminated water: a critical review. Sci. Total Environ. 2017;601:756-769.
Fu F, Wang Q. Removal of heavy metal ions from wastewaters: A review. J. Environ. Manage. 2011;92:407-418.
Van WA, Mons M, Delft WV. New methods to monitor emerging chemicals in the drinking water production chain. J. Environ. Monit. 2010;12:80-89.
Raza M, Hussain F, Lee JY, Shakoor MB, Kwon KD. Groundwater status in Pakistan: A review of contamination, health risks, and potential needs. Crit. Rev. Environ. Sci. Technol. 2017;47: 1713-1762.
Shakoor MB, Nawaz R, Hussain F, et al. Human health implications, risk assessment and remediation of As-contaminated water: a critical review. Sci. Total Environ. 2017;601:756-769.
Fu F, Wang Q. Removal of heavy metal ions from wastewaters: A review. J. Environ. Manage. 2011;92:407-418.
Van WA, Mons M, Delft WV. New methods to monitor emerging chemicals in the drinking water production chain. J. Environ. Monit. 2010;12:80-89.
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UCI(KEPA) : I410-ECN-0101-2021-539-001423176