Effect of Parathion Exposure towards Green Microalgae Chlorella vulgaris on the Changes of Physicochemical Parameters in Water
Agricultural activities has caused the release of pesticides such as parathion into the environment, which threatened the freshwater ecosystem. Therefore, the objective is to observe for the changes of physicochemical parameters (pH, conductivity and dissolve oxygen) caused on Chlorella vulgaris due...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
INTI International University
2019
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| Online Access: | http://eprints.intimal.edu.my/1354/ http://eprints.intimal.edu.my/1354/1/ij2019_58.pdf |
| _version_ | 1848766713819037696 |
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| author | Cheng, Wan Hee Wong, Ling Shing Chong, Kah Chi |
| author_facet | Cheng, Wan Hee Wong, Ling Shing Chong, Kah Chi |
| author_sort | Cheng, Wan Hee |
| building | INTI Institutional Repository |
| collection | Online Access |
| description | Agricultural activities has caused the release of pesticides such as parathion into the environment, which threatened the freshwater ecosystem. Therefore, the objective is to observe for the changes of physicochemical parameters (pH, conductivity and dissolve oxygen) caused on Chlorella vulgaris due to parathion exposure. The cell count of C. vulgaris was done using hemocytometer and this alga was exposed to different concentrations of parathion (1.000 mg/L, 0.100 mg/L, 0.001 mg/L, and 0.000 mg/L (negative control)). The values of each parameter were recorded before the exposure and after 1 hour, 2 hours, 6 hours and 24 hours of exposure by using physicochemical parameter. The results showed a fluctuation of all physicochemical parameters (pH, conductivity and dissolved oxygen) values in the surrounding water at the first 5 hours of exposure and decreased before reaching a plateau after the fifth hour of exposure. The reason of this phenomenon could be due to the inhibition effects of parathion towards the photosynthesis activities of the algae and thus lowering the physicochemical parameters. Therefore, C. vulgaris serves as a good bioindicator of parathion pollution. |
| first_indexed | 2025-11-14T11:55:31Z |
| format | Article |
| id | intimal-1354 |
| institution | INTI International University |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:55:31Z |
| publishDate | 2019 |
| publisher | INTI International University |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | intimal-13542024-04-19T07:31:30Z http://eprints.intimal.edu.my/1354/ Effect of Parathion Exposure towards Green Microalgae Chlorella vulgaris on the Changes of Physicochemical Parameters in Water Cheng, Wan Hee Wong, Ling Shing Chong, Kah Chi Q Science (General) Agricultural activities has caused the release of pesticides such as parathion into the environment, which threatened the freshwater ecosystem. Therefore, the objective is to observe for the changes of physicochemical parameters (pH, conductivity and dissolve oxygen) caused on Chlorella vulgaris due to parathion exposure. The cell count of C. vulgaris was done using hemocytometer and this alga was exposed to different concentrations of parathion (1.000 mg/L, 0.100 mg/L, 0.001 mg/L, and 0.000 mg/L (negative control)). The values of each parameter were recorded before the exposure and after 1 hour, 2 hours, 6 hours and 24 hours of exposure by using physicochemical parameter. The results showed a fluctuation of all physicochemical parameters (pH, conductivity and dissolved oxygen) values in the surrounding water at the first 5 hours of exposure and decreased before reaching a plateau after the fifth hour of exposure. The reason of this phenomenon could be due to the inhibition effects of parathion towards the photosynthesis activities of the algae and thus lowering the physicochemical parameters. Therefore, C. vulgaris serves as a good bioindicator of parathion pollution. INTI International University 2019 Article PeerReviewed text en cc_by_4 http://eprints.intimal.edu.my/1354/1/ij2019_58.pdf Cheng, Wan Hee and Wong, Ling Shing and Chong, Kah Chi (2019) Effect of Parathion Exposure towards Green Microalgae Chlorella vulgaris on the Changes of Physicochemical Parameters in Water. INTI JOURNAL, 2019 (58). ISSN e2600-7320 https://intijournal.intimal.edu.my |
| spellingShingle | Q Science (General) Cheng, Wan Hee Wong, Ling Shing Chong, Kah Chi Effect of Parathion Exposure towards Green Microalgae Chlorella vulgaris on the Changes of Physicochemical Parameters in Water |
| title | Effect of Parathion Exposure towards Green Microalgae Chlorella vulgaris on the Changes of Physicochemical Parameters in Water |
| title_full | Effect of Parathion Exposure towards Green Microalgae Chlorella vulgaris on the Changes of Physicochemical Parameters in Water |
| title_fullStr | Effect of Parathion Exposure towards Green Microalgae Chlorella vulgaris on the Changes of Physicochemical Parameters in Water |
| title_full_unstemmed | Effect of Parathion Exposure towards Green Microalgae Chlorella vulgaris on the Changes of Physicochemical Parameters in Water |
| title_short | Effect of Parathion Exposure towards Green Microalgae Chlorella vulgaris on the Changes of Physicochemical Parameters in Water |
| title_sort | effect of parathion exposure towards green microalgae chlorella vulgaris on the changes of physicochemical parameters in water |
| topic | Q Science (General) |
| url | http://eprints.intimal.edu.my/1354/ http://eprints.intimal.edu.my/1354/ http://eprints.intimal.edu.my/1354/1/ij2019_58.pdf |