Determination of glyphosate through passive and active sampling methods in a treated field atmosphere
The study was carried out to determine the atmospheric residues of glyphosate (N-phosphonomethylglicine) using both passive and active sampling methods in Malaysia’s tropical weather conditions. The field was treated with Roundup (Monsanto) @ 2L ha-1 using Mistblower (Solo 412). Glyphosate was sampl...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Academic Journals
2011
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/23658/ http://psasir.upm.edu.my/id/eprint/23658/1/23658.pdf |
| _version_ | 1848844819583991808 |
|---|---|
| author | Morshed, Md. Mahbub Omar, Dzolkhifli Mohamad, Rosli Abd. Wahid, Samsuri |
| author_facet | Morshed, Md. Mahbub Omar, Dzolkhifli Mohamad, Rosli Abd. Wahid, Samsuri |
| author_sort | Morshed, Md. Mahbub |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The study was carried out to determine the atmospheric residues of glyphosate (N-phosphonomethylglicine) using both passive and active sampling methods in Malaysia’s tropical weather conditions. The field was treated with Roundup (Monsanto) @ 2L ha-1 using Mistblower (Solo 412). Glyphosate was sampled in 12 h day time pre and post-spray sampling events using three simple and low-cost passive air samplers (cotton gauze, cellulose filter, and PUF) and active sampling using PUF plug and quartz filter cartridges. In pre-spray sampling event, no glyphosate detection was shown in both passive and active sampling. On the other hand, post-spray passive samples data revealed that only cotton gauze among the three passive air samples showed detection in both post-spray events during which the first post-spray (2.49 ng/cm2) showed significantly higher residue measurement than that of second post-spray period (0.84 ng/cm2). In active sampling, however, no glyphosate residue was detected in any of the PUF plug samples but detected only in quartz filter samples, revealing that glyphosate is associated with particles rather than vapour in the air. The highest concentration of glyphosate (42.96µg/m3) was measured in the air at operator’s breathing zoneduring the 25 min spray application period. In the post-spray active sampling periods, glyphosate residue was significantly far below compared to the spray period concentration. Furthermore, in paired comparison between active and passive sampling methods in terms of residue uptake performance, passive sampling showed significantly better performance than the active sampling method in this study. |
| first_indexed | 2025-11-15T08:36:59Z |
| format | Article |
| id | upm-23658 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:36:59Z |
| publishDate | 2011 |
| publisher | Academic Journals |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-236582017-11-08T08:34:02Z http://psasir.upm.edu.my/id/eprint/23658/ Determination of glyphosate through passive and active sampling methods in a treated field atmosphere Morshed, Md. Mahbub Omar, Dzolkhifli Mohamad, Rosli Abd. Wahid, Samsuri The study was carried out to determine the atmospheric residues of glyphosate (N-phosphonomethylglicine) using both passive and active sampling methods in Malaysia’s tropical weather conditions. The field was treated with Roundup (Monsanto) @ 2L ha-1 using Mistblower (Solo 412). Glyphosate was sampled in 12 h day time pre and post-spray sampling events using three simple and low-cost passive air samplers (cotton gauze, cellulose filter, and PUF) and active sampling using PUF plug and quartz filter cartridges. In pre-spray sampling event, no glyphosate detection was shown in both passive and active sampling. On the other hand, post-spray passive samples data revealed that only cotton gauze among the three passive air samples showed detection in both post-spray events during which the first post-spray (2.49 ng/cm2) showed significantly higher residue measurement than that of second post-spray period (0.84 ng/cm2). In active sampling, however, no glyphosate residue was detected in any of the PUF plug samples but detected only in quartz filter samples, revealing that glyphosate is associated with particles rather than vapour in the air. The highest concentration of glyphosate (42.96µg/m3) was measured in the air at operator’s breathing zoneduring the 25 min spray application period. In the post-spray active sampling periods, glyphosate residue was significantly far below compared to the spray period concentration. Furthermore, in paired comparison between active and passive sampling methods in terms of residue uptake performance, passive sampling showed significantly better performance than the active sampling method in this study. Academic Journals 2011-09-05 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23658/1/23658.pdf Morshed, Md. Mahbub and Omar, Dzolkhifli and Mohamad, Rosli and Abd. Wahid, Samsuri (2011) Determination of glyphosate through passive and active sampling methods in a treated field atmosphere. African Journal of Agricultural Research, 6 (17). art. no. 5E1CA0830651. pp. 4010-4018. ISSN 1991-637X http://www.academicjournals.org/journal/AJAR/article-abstract/5E1CA0830651 10.5897/AJAR11.533 |
| spellingShingle | Morshed, Md. Mahbub Omar, Dzolkhifli Mohamad, Rosli Abd. Wahid, Samsuri Determination of glyphosate through passive and active sampling methods in a treated field atmosphere |
| title | Determination of glyphosate through passive and active sampling methods in a treated field atmosphere |
| title_full | Determination of glyphosate through passive and active sampling methods in a treated field atmosphere |
| title_fullStr | Determination of glyphosate through passive and active sampling methods in a treated field atmosphere |
| title_full_unstemmed | Determination of glyphosate through passive and active sampling methods in a treated field atmosphere |
| title_short | Determination of glyphosate through passive and active sampling methods in a treated field atmosphere |
| title_sort | determination of glyphosate through passive and active sampling methods in a treated field atmosphere |
| url | http://psasir.upm.edu.my/id/eprint/23658/ http://psasir.upm.edu.my/id/eprint/23658/ http://psasir.upm.edu.my/id/eprint/23658/ http://psasir.upm.edu.my/id/eprint/23658/1/23658.pdf |