SOIL FUMIGATION CHAPTERS 2 AND 9
EXAM QUESTIONS AND ANSWERS 100%
PASS.
Soil Fumigants - Primary human exposure route - ANS Acute inhalation exposure.
Soil Fumigants - Volatilization - ANS Change from liquid or solid into a gas.
Soil Fumigants - Adsorb vs Absorb - ANS Adsorb = sticks to surface; Absorb = dissolves into
medium.
Soil Fumigants - Greatest risk group - ANS Fumigant handlers.
Soil Fumigants - Common exposure symptoms - ANS Eye irritation, dizziness, nausea,
coughing, tremors.
Methyl Bromide - Physical state - ANS Colorless, odorless gas stored under pressure as liquid.
Methyl Bromide - Soil travel distance - ANS Up to 36 inches.
Methyl Bromide - Minimum chloropicrin required - ANS 2%.
Methyl Bromide - Why sealing is critical - ANS Highly volatile; prevents off-gassing.
2026 STUDY MATERIAL @COPYRIGHT RESERVED 1
, Methyl Bromide - Phase-out reason - ANS Ozone depletion (Montreal Protocol).
Methyl Bromide - Corrosive to - ANS PVC, nylon, aluminum, galvanized metal.
Chloropicrin - Primary purpose in MB formulations - ANS Warning agent (tear gas effect).
Chloropicrin - Soil movement distance - ANS 6-12 inches.
Chloropicrin - Irritation level - ANS Can irritate eyes at 1 ppm.
Chloropicrin - Compatible materials - ANS Brass, carbon steel, stainless steel.
Chloropicrin - Do NOT use with - ANS Aluminum, galvanized metal, PVC, nylon.
1,3-Dichloropropene (1,3-D) - Primary target pest - ANS Plant-feeding nematodes.
1,3-Dichloropropene (1,3-D) - Carcinogen status - ANS Probable human carcinogen.
1,3-Dichloropropene (1,3-D) - Corrosive to - ANS Aluminum, zinc, magnesium.
1,3-Dichloropropene (1,3-D) - Adsorption increases with - ANS Higher organic matter and
lower temperature.
1,3-Dichloropropene (1,3-D) - Trade names - ANS Telone II, Telone C-35.
Metam Sodium - Active gas formed - ANS MITC (methyl isothiocyanate).
2026 STUDY MATERIAL @COPYRIGHT RESERVED 2
EXAM QUESTIONS AND ANSWERS 100%
PASS.
Soil Fumigants - Primary human exposure route - ANS Acute inhalation exposure.
Soil Fumigants - Volatilization - ANS Change from liquid or solid into a gas.
Soil Fumigants - Adsorb vs Absorb - ANS Adsorb = sticks to surface; Absorb = dissolves into
medium.
Soil Fumigants - Greatest risk group - ANS Fumigant handlers.
Soil Fumigants - Common exposure symptoms - ANS Eye irritation, dizziness, nausea,
coughing, tremors.
Methyl Bromide - Physical state - ANS Colorless, odorless gas stored under pressure as liquid.
Methyl Bromide - Soil travel distance - ANS Up to 36 inches.
Methyl Bromide - Minimum chloropicrin required - ANS 2%.
Methyl Bromide - Why sealing is critical - ANS Highly volatile; prevents off-gassing.
2026 STUDY MATERIAL @COPYRIGHT RESERVED 1
, Methyl Bromide - Phase-out reason - ANS Ozone depletion (Montreal Protocol).
Methyl Bromide - Corrosive to - ANS PVC, nylon, aluminum, galvanized metal.
Chloropicrin - Primary purpose in MB formulations - ANS Warning agent (tear gas effect).
Chloropicrin - Soil movement distance - ANS 6-12 inches.
Chloropicrin - Irritation level - ANS Can irritate eyes at 1 ppm.
Chloropicrin - Compatible materials - ANS Brass, carbon steel, stainless steel.
Chloropicrin - Do NOT use with - ANS Aluminum, galvanized metal, PVC, nylon.
1,3-Dichloropropene (1,3-D) - Primary target pest - ANS Plant-feeding nematodes.
1,3-Dichloropropene (1,3-D) - Carcinogen status - ANS Probable human carcinogen.
1,3-Dichloropropene (1,3-D) - Corrosive to - ANS Aluminum, zinc, magnesium.
1,3-Dichloropropene (1,3-D) - Adsorption increases with - ANS Higher organic matter and
lower temperature.
1,3-Dichloropropene (1,3-D) - Trade names - ANS Telone II, Telone C-35.
Metam Sodium - Active gas formed - ANS MITC (methyl isothiocyanate).
2026 STUDY MATERIAL @COPYRIGHT RESERVED 2
