Related Experiment Video
Updated: Dec 6, 2025
Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff
Published on: May 15, 2017
Impact of Diuron contamination on blood cockles (Tegillarca granosa Linnaeus, 1758)
Ferdaus Mohamat-Yusuff1, Zurfatiha Zulkarnain2, Nurul Zatul Amira Anuar2
1Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; International Institute of Aquaculture & Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, Jalan Kemang 6, Batu 7, Teluk Kemang, 71050 Port Dickson, Negeri Sembilan, Malaysia.
Abstract:
Examination of the impact of Diuron contamination on blood cockles (Tegillarca granosa) was conducted by combining field screening at three sampling events and a toxicity test. Diuron was extracted using the liquid-liquid extraction (LLE) technique and analyzed using HPLC-UV. The median lethal concentration (LC50) of Diuron on T. granosa was tested under a 72-h exposure. Diuron in water samples ranged from not detected (ND) to 3910 ppb, which was the highest concentration detected in samples after the irrigation water was discharged from the paddy plantation. Diuron was not detected in sediment samples. Mortality of T. granosa ranged from 4.74 to 38.33% with the highest percentages recorded after the release of the irrigation water. The LC50 value of Diuron was 1.84 ppm. This study suggests that irrigation water from paddy plantation that drifts to coastal areas containing Diuron harms T. granosa at the study area.
