International Journal of Sciences: Basic and Applied Research (IJSBAR) ISSN 2307-4531 (Print & Online) http://gssrr.org/index.php?journal=JournalOfBasicAndApplied --------------------------------------------------------------------------------------------------------------------------- Health Risk Assessment of Rice Consumption: Analysis of Imidacloprid Residue in Paddy and Rice from Tanjung Karang, Selangor Raihanah, Chokeli a , Zailina Hashim b* , Ho Yu Bin c , Saliza Mohd Elias d , Norida Mazlan e a,b,c,d Department of Environmental and Occupational Health, Faculty Of Medicine And Health Sciences, Universiti Putra Malaysia 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia e Department of Agriculture Technology, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia b Email: zailina@medic.upm.edu.my Abstract 50 samples of paddy, brown rice and white rice were collected from paddy fields in Tanjung Karang, Selangor and were analysed for imidacloprid residues. This study objective was to evaluate the non-carcinogenic health risks on Tanjung Karang’s population (n=552) through rice consumption. The population were divided into 3 age groups. The QuEChERS of extraction with (Ultra High Performance Liquid Chromatography- Ultra Violet) UHPLC-UV analysis was carried out to analyse the residues. Imidacloprid was detected in 20%, 14% and 10% of paddy samples, brown rice and white rice, respectively with 4% of the total samples exceeded the MRL. The mean imidacloprid concentration was 0.14 mg/kg in the paddy sample, 0.04 mg/kg in brown rice sample and 0.03 mg/kg in white rice sample. The EDI for adult, adolescent and children were 0.08 mg/kg, 0.03 mg/kg and 0.0002 mg/kg bw, respectively. HQ value of adult was 1.32 showed that this group was exposed to non- carcinogenic health risk through rice consumption. ------------------------------------------------------------------------ * Corresponding author. E-mail address: zailina@medic.upm.edu.my 208