What Is 5.1 Analysis Of Trace Metals
CHAPTER 5
DISCUSSION
5.1 Analysis of Trace Metal by FAAS
Based on the table (4.3 and 4.4) the trace elements was detected by using the flame atomic absorption spectrophotometry analysis. The trace metal can be detected by the FAAS within 15 seconds to 30 seconds of each soil sample. Before the samples were analysis with the FAAS, the blank samples were run in the machine for each element that was being analyzed. Their absorbances were read. The mean of each blank was calculated and hence the detection limits determined for each element, which are for magnesium, manganese, and copper.
The standards calibration were run in the AAS machine before the real analysis of each metal and after the analysis of the same metals. Calibration …show more content…
The CDI was calculated from the equation 3.2, 3.3 and 3.4 as in Chapter 3 for copper, manganese and magnesium elements. The CDI value means quantity of chemical substance ingested, inhaled, or absorbed through the skin per kilogram of body weight per day (mg/kg/day). The value of CDI could be used to assess the possible entry of heavy metals into the human body. (Lim et al., 2008). According to the result in the table 4.8, 4.9 and 4.10, the exposure through the dermal contact or absorption have the lowest value compared to the other exposure …show more content…
This is because there is no reference dose of magnesium stated by the US EPA (2002) and RAIS (2011) as the copper and manganese. Table 3.2 in the Chapter 3 showed the RfD of copper and manganese. The HQ result for the copper and manganese by the soil exposure pathways is in Table 4.11 and 4.12. If HQ equal or less than 1 indicates no adverse human health effects are expected to occur and HQ more than 1 indicates likely adverse health effects to occur.(Man et al., 2010). So, from the result in Table 4.11 and 4.12 ,the HQ of copper and manganese for different exposure routes are less than 1, where there is no adverse effects or non-cancer risk on humans are expected to occur to the both outdoor worker at palm oil plantation and construction workers when expose to the soils. The result from Table 4.11 and 4.12 shows, there were no non-cancer risk of soil on adults through ingestion, dermal contact and inhalation for both copper and manganese. All the hazard quotient are less than one, so there is no adverse health effect occur to the human when expose to the
DISCUSSION
5.1 Analysis of Trace Metal by FAAS
Based on the table (4.3 and 4.4) the trace elements was detected by using the flame atomic absorption spectrophotometry analysis. The trace metal can be detected by the FAAS within 15 seconds to 30 seconds of each soil sample. Before the samples were analysis with the FAAS, the blank samples were run in the machine for each element that was being analyzed. Their absorbances were read. The mean of each blank was calculated and hence the detection limits determined for each element, which are for magnesium, manganese, and copper.
The standards calibration were run in the AAS machine before the real analysis of each metal and after the analysis of the same metals. Calibration …show more content…
The CDI was calculated from the equation 3.2, 3.3 and 3.4 as in Chapter 3 for copper, manganese and magnesium elements. The CDI value means quantity of chemical substance ingested, inhaled, or absorbed through the skin per kilogram of body weight per day (mg/kg/day). The value of CDI could be used to assess the possible entry of heavy metals into the human body. (Lim et al., 2008). According to the result in the table 4.8, 4.9 and 4.10, the exposure through the dermal contact or absorption have the lowest value compared to the other exposure …show more content…
This is because there is no reference dose of magnesium stated by the US EPA (2002) and RAIS (2011) as the copper and manganese. Table 3.2 in the Chapter 3 showed the RfD of copper and manganese. The HQ result for the copper and manganese by the soil exposure pathways is in Table 4.11 and 4.12. If HQ equal or less than 1 indicates no adverse human health effects are expected to occur and HQ more than 1 indicates likely adverse health effects to occur.(Man et al., 2010). So, from the result in Table 4.11 and 4.12 ,the HQ of copper and manganese for different exposure routes are less than 1, where there is no adverse effects or non-cancer risk on humans are expected to occur to the both outdoor worker at palm oil plantation and construction workers when expose to the soils. The result from Table 4.11 and 4.12 shows, there were no non-cancer risk of soil on adults through ingestion, dermal contact and inhalation for both copper and manganese. All the hazard quotient are less than one, so there is no adverse health effect occur to the human when expose to the