Soil samples were collected from five sites in northern Illinois and analyzed for trace metal concentrations using ICP-OES and ICP-MS instruments. The sites showed varying levels of lead concentration, from 0.11-110 parts per million at a prairie site to 56-160 ppm at a sewage site. While high levels near a highway suggested contamination from leaded gasoline, the levels were not toxic. Going forward, the author plans to analyze metal levels in water samples and research ways to reduce contamination.
Our objective is to demonstrate how Total Organic Carbon (TOC) analysis is a quick, accurate screening alternative for critiquing cleaning validation samples.
Typical laboratory testing includes the development and implementation of analytical methods that test for residues of previously manufactured products, cleaning detergents, chemicals, solvents, byproducts, degradants, and microbial contaminates (from wet environments after the cleaning validation). TOC analysis has become one of a series of analytical methods used to assess the effectiveness of a cleaning validation. Almost any residual compound can be detected if three non-specific analytical (screening) tests are applied to a cleaning validation: TOC (for organics characteristics– carbon), pH (for acid/base characteristics) and conductivity (for ionic characteristics).
Analytical precision and analyte recovery for cleaning agents (detergents) and other possible contaminates that may be found in clean in place (CIP) solutions will be investigated for TOC. TOC analysis demonstrated equivalent or better correlation to cleaning validation compounds in comparison to traditional analytical methods. Some qualities that make TOC a viable part of a cleaning validation includes: high sensitivity, high recovery of samples, non-specific measurement, ease of use (little method development), minimal interferences and cost effectiveness.
This presentation will focus on the characteristics and benefits of TOC with general implementation guidelines for performing cleaning validation. By taking a proactive approach to one’s cleaning validation program, one can guarantee effective performance while minimizing downtime.
Our objective is to demonstrate how Total Organic Carbon (TOC) analysis is a quick, accurate screening alternative for critiquing cleaning validation samples.
Typical laboratory testing includes the development and implementation of analytical methods that test for residues of previously manufactured products, cleaning detergents, chemicals, solvents, byproducts, degradants, and microbial contaminates (from wet environments after the cleaning validation). TOC analysis has become one of a series of analytical methods used to assess the effectiveness of a cleaning validation. Almost any residual compound can be detected if three non-specific analytical (screening) tests are applied to a cleaning validation: TOC (for organics characteristics– carbon), pH (for acid/base characteristics) and conductivity (for ionic characteristics).
Analytical precision and analyte recovery for cleaning agents (detergents) and other possible contaminates that may be found in clean in place (CIP) solutions will be investigated for TOC. TOC analysis demonstrated equivalent or better correlation to cleaning validation compounds in comparison to traditional analytical methods. Some qualities that make TOC a viable part of a cleaning validation includes: high sensitivity, high recovery of samples, non-specific measurement, ease of use (little method development), minimal interferences and cost effectiveness.
This presentation will focus on the characteristics and benefits of TOC with general implementation guidelines for performing cleaning validation. By taking a proactive approach to one’s cleaning validation program, one can guarantee effective performance while minimizing downtime.
IOSR Journal of Applied Chemistry (IOSR-JAC) is an open access international journal that provides rapid publication (within a month) of articles in all areas of applied chemistry and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in Chemical Science. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
Assessment of remediation Potentials of maize (Zea mays) on sites co-contamin...IJAEMSJORNAL
Phytoremediation is a promising technology for the remediation of sites co-contaminated with inorganic and organic pollutants. A pot experiment was conducted to evaluate the remediation potential of Z.mays in soil co- contaminated with Pb and antracene. Pristine sandy loam soils were polluted with Pb chloride salt and antracene at three different levels (50mg/kg of Pb, 100mg/kg of Pb, and 100mg/kg of Pb+100mg/kg of antracene) and laid out in completely randomized design with 3 replicates. Shoot dry matter weight was significantly reduced (p≤0.05) when compared with control treatments by 40% when exposed to100mg kg-1 of Pb. There was a 48% inhibition of shoot dry matter of Z.mays relative to control treatments when 100 mg Pb kg-1 was mixed with 100 mgkg-1 antracene. Root and shoot metal concentration in Zea mays increased with increasing concentration of Pb. The average Translocation Factor (TF < 1 (0.69) obtained suggests that Zea mays predominantly retains Pb in the root portion of the plant. There was a 5% increase in shoot Pb concentration when soil was contaminated with Pb and antracene. The extractable antracene decreased significantly (p≤0.05) in soil planted with Z.mays as well as in pots without maize plant. This accounted for 65 and 72% of antracene dissipation in planted soil and 40-46% dissipation in unplanted soil. This result suggested that Zeamays is a promising candidate for uptake Pb and dissipation of antracene in co-contaminated soils.
Evaluation of some heavy metals in roadside soil along Samaru-Giwa road, Zari...Innspub Net
This research work was carried out to evaluate the concentrations of some heavy metals (Pb, Cd, Cu, Zn and Mn) in roadside soil along Samaru-Giwa road, Zaria, Nigeria. Four sampling locations were selected (ABUTH, NAPRI, Marabar Guga and ABU Dam Quarters in Ahmadu Bello University, Zaria main campus which served as the control site). Soil samples were collected at 0, 50, 100 and 200 m distances from the roadside in three replicates, air dried at room temperature, sieved and kept in specimen bottles with appropriate labels pending analysis. Samples were digested and analyzed for concentrations of Lead (Pb), Cadmium (Cd), Copper (Cu), Zinc (Zn) and Manganese (Mn) using Atomic Absorption Spectrophotometer (AAS). Concentrations of these heavy metals were observed to be significantly higher at 0 m than the other distances from the roadside and this decreased with increasing distance from the roadside. There was generally no significant difference in soil heavy metal concentration at 50- 200 m from the roadside. Soil lead concentration was mostly observed to be higher than that of all other metals studied. The concentrations of heavy metals observed in the soil samples was in the order of Pb>Mn>Zn >Cd >Cu. The contamination factors for individual heavy metal for the locations showed low to moderate contamination by the metals. Among the locations studied, Ahmadu Bello University Teaching Hospital, (ABUTH) showed the highest concentration of the most heavy metals while ABU Dam Quarters (Control), had the lowest concentration of most of the heavy metals. The study showed that, nearness to the roadside increased the soil heavy metal concentrations and this could invariably influence the same in crops planted or farm produce being dried along the roadside.
An arsenic corrosion inhibitor named W-41 was used at Lake St. John oilfield in the 1950s. The geochemical signature of the arsenic usage and its migration is preserved in shallow groundwater below the old oilfield pits.
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IOSR Journal of Applied Chemistry (IOSR-JAC) is an open access international journal that provides rapid publication (within a month) of articles in all areas of applied chemistry and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in Chemical Science. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
Assessment of remediation Potentials of maize (Zea mays) on sites co-contamin...IJAEMSJORNAL
Phytoremediation is a promising technology for the remediation of sites co-contaminated with inorganic and organic pollutants. A pot experiment was conducted to evaluate the remediation potential of Z.mays in soil co- contaminated with Pb and antracene. Pristine sandy loam soils were polluted with Pb chloride salt and antracene at three different levels (50mg/kg of Pb, 100mg/kg of Pb, and 100mg/kg of Pb+100mg/kg of antracene) and laid out in completely randomized design with 3 replicates. Shoot dry matter weight was significantly reduced (p≤0.05) when compared with control treatments by 40% when exposed to100mg kg-1 of Pb. There was a 48% inhibition of shoot dry matter of Z.mays relative to control treatments when 100 mg Pb kg-1 was mixed with 100 mgkg-1 antracene. Root and shoot metal concentration in Zea mays increased with increasing concentration of Pb. The average Translocation Factor (TF < 1 (0.69) obtained suggests that Zea mays predominantly retains Pb in the root portion of the plant. There was a 5% increase in shoot Pb concentration when soil was contaminated with Pb and antracene. The extractable antracene decreased significantly (p≤0.05) in soil planted with Z.mays as well as in pots without maize plant. This accounted for 65 and 72% of antracene dissipation in planted soil and 40-46% dissipation in unplanted soil. This result suggested that Zeamays is a promising candidate for uptake Pb and dissipation of antracene in co-contaminated soils.
Evaluation of some heavy metals in roadside soil along Samaru-Giwa road, Zari...Innspub Net
This research work was carried out to evaluate the concentrations of some heavy metals (Pb, Cd, Cu, Zn and Mn) in roadside soil along Samaru-Giwa road, Zaria, Nigeria. Four sampling locations were selected (ABUTH, NAPRI, Marabar Guga and ABU Dam Quarters in Ahmadu Bello University, Zaria main campus which served as the control site). Soil samples were collected at 0, 50, 100 and 200 m distances from the roadside in three replicates, air dried at room temperature, sieved and kept in specimen bottles with appropriate labels pending analysis. Samples were digested and analyzed for concentrations of Lead (Pb), Cadmium (Cd), Copper (Cu), Zinc (Zn) and Manganese (Mn) using Atomic Absorption Spectrophotometer (AAS). Concentrations of these heavy metals were observed to be significantly higher at 0 m than the other distances from the roadside and this decreased with increasing distance from the roadside. There was generally no significant difference in soil heavy metal concentration at 50- 200 m from the roadside. Soil lead concentration was mostly observed to be higher than that of all other metals studied. The concentrations of heavy metals observed in the soil samples was in the order of Pb>Mn>Zn >Cd >Cu. The contamination factors for individual heavy metal for the locations showed low to moderate contamination by the metals. Among the locations studied, Ahmadu Bello University Teaching Hospital, (ABUTH) showed the highest concentration of the most heavy metals while ABU Dam Quarters (Control), had the lowest concentration of most of the heavy metals. The study showed that, nearness to the roadside increased the soil heavy metal concentrations and this could invariably influence the same in crops planted or farm produce being dried along the roadside.
An arsenic corrosion inhibitor named W-41 was used at Lake St. John oilfield in the 1950s. The geochemical signature of the arsenic usage and its migration is preserved in shallow groundwater below the old oilfield pits.
Similar to AbstractSoilContaminationResearchProject (18)
1. Denzel Akosa
Dr.Hatch
Chemistry
08/10/2016
Abstract
We have analyzed concentrations of trace metals in soil samples through the use of the
Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) and ICP-MS (mass
spectrometry) instruments. Soil samples were collected from five sites in northern Illinois:
Markham, which has a preserved prairie with a lead concentration range of 0.11-110 parts per
million (ppm); the Chicago Botanic Garden, 0.3-3.0 ppm lead; Mason Park in Evanston, 0.3-6.0
ppm lead; a sewage site in Chicago, 56-160 ppm lead; and Advanced Disposal, 0.2-0.3 ppm lead.
The concentrations of trace metals in soil samples are important to be aware of because humans
are exposed to soil on a daily basis, which could lead to health effects such as lead poisoning.
The results from the Markham prairie suggest a high contamination level of lead from soil
samples collected near the highway. However, these levels of lead were not high enough to be
toxic. The soil may have been contaminated by leaded gasoline due to the proximity of the
highway to the prairie. Leaded gasoline has not been used for over a decade; lead’s possible
presence in a preserved prairie makes us question the levels of contamination in non-preserved
areas. In order to continue to contribute to this field of research, I plan to collect and analyze
water samples for their metal concentrations as well as research possible chemical solutions to
reduce the contamination levels.
