## 3 Results
\begin{table}
\begin{tabular}{c c c} \hline \hline
**Characteristics** & **Frequency** & **Percentage** \\ \hline Farm area (rai(s)) & & \\ \textless{}10 & 17 & 56.7 \\
11–20 & 6 & 20.0 \\
21–30 & 2 & 6.6 \\ \textgreater{}30 & 5 & 16.7 \\ (1 rai = 1600 square meters) & & \\ Duration of working (h/time) & & \\ Land preparation & & \\ \textless{}1 & - & - \\
1–2 & 14 & 46.7 \\ \textgreater{}2 & 16 & 53.3 \\ Prestiode spraying & & \\ \textless{}1 & 30 & 100.0 \\
1–2 & - & - \\ \textgreater{}2 & - & - \\ Harvest & & \\ \textless{}1 & - & - \\
1–2 & 26 & 86.7 \\ \textgreater{}2 & 4 & 13.3 \\ Number of annual mechanical applications (time(s)/Year) & & \\ Tractor & & \\ \textless{}10 & 13 & 43.3 \\
11–20 & 13 & 43.3 \\
21–30 & 3 & 10.0 \\ \textgreater{}30 & 1 & 3.3 \\ Mechanical backpack sprayer & & \\ \textless{}10 & 7 & 23.3 \\
11–20 & 12 & 40.0 \\
21–30 & 2 & 6.6 \\ \textgreater{}30 & 9 & 30.0 \\ Handling and work practice & & \\ Follows all product instructions & 27 & 90.0 \\ Checks tools before use & 30 & 100.0 \\ Prepares mechanical applications at home & 26 & 86.7 \\ Stores mechanical applicators at home & 26 & 86.7 \\ Cleans spraying equipment after work & 29 & 96.7 \\ Takes a meal at work place & 12 & 40.0 \\ Smokes while applying pesticides & 6 & 20.0 \\ Considers the safety period & 28 & 93.3 \\ PPE usage & & \\ Gloves & & \\ Rubber & 26 & 86.7 \\ Fabric & 26 & 86.7 \\ Long & 26 & 86.7 \\ Short & 26 & 86.7 \\ Mask & 26 & 86.7 \\ Boos & 24 & 80.0 \\ Hat & 29 & 96.7 \\ Short sleeved shirt & 5 & 16.7 \\ Long sleeved shirt & 29 & 96.7 \\ Short sleeved pants & 2 & 6.6 \\ Long sleeved Pants & 28 & 93.3 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Farm and work practices (\(n\) = 30). Ninety percent said they always read the instructions and checked the equipment prior to use. Approximately, 86.7% of respondents prepared and stored mechanical applicators at home. More than 90.0% of respondents cleaned spraying equipment after work, and most of them never smoked nor drank alcohol while working. They wore gloves, masks, boots, and hats during any farming activity, and more than 90% of them always wore long-sleeved shirt and pants. The respondents reported that they used fabric/leather gloves and fabric masks while spraying. None used chemically resistant or commercial masks. Personal air samples were collected from each participant to be analyzed for VOCs and SVOCs. Due to the fragility of the SPMEs, many fiber needles were broken during the sampling. Personal samples using the charcoal sorbent tube displayed a ruggedness of this sampling technique, which the SPME sampler did not enjoy. A previous study demonstrated that charcoal tube sampling might be comparable to SPMEs for quantitative assessment of exposure under the right conditions [33]. Fibers were deployed for all thirty farmers. Only five SPME samples were completed: one during land preparation, three after pesticide spraying, and one after harvesting. Overall, thirty chemicals were detected between the two techniques, with ten were found using both techniques. However, not all chemicals were found in all samples. These components were (1) 1, 2 Dichloroethane; (2) Methylene Chloride; (3) Trichloromethane; (4) 1, 1 Trichloroethane; (5) Benzene; (6) 1, 2 Dichloro Propane; (7) Toluene; (8) 1, 3 Dichloro Propane; (9) Dibromo Chloro Methane; (10) 1, 2 Dibromoethane; (11) Ethylbenzene; (12) o-Xylene; (13) m-Xylene; (14) p-Xylene; (15) Styrene; (16) 1-Methyl Ethyl Benzene; (17) Propyl Benzene; (18) 1-Chloro-3-Methyl-Benzene; (19) 1-Chloro-2-Methyl-Benzene; (20) 1-Ethyl-3-Methyl Benzene; (21) Tert-Butyl Benzene; (22) 1, 3, 5-Trimethyl Benzene; (23) 1-Methyl Propyle Benzene; (24) 1, 3-Dichloro Benzene; (25) 1, 4-Dichloro Benzene; (26) Butyl Benzene; (27) 1, 2 Dibromo-3-Chloro Propane; (28) 1, 3, 5 Trichloro Benzene; (29) Naphthalene; and (30) 1, 2, 3 Trichlor Benzene.