Methyl Bromide Commodity Fumigation Buffer Zone Lookup Tables
Methyl Bromide Products Requiring Buffer Zones
The labels of the products below require that all applications must have a specified buffer zone around treatment and aeration areas. Buffer zone distances must be determined according to the tables and instructions below. The applicable buffer zone is part of the directions for use of these products.
| Product Name | EPA Registration Number |
|---|---|
| METH-O-GAS 100 | 5785-11 |
| METH-O-GAS Q | 5785-41 |
| METHYL BROMIDE 100 | 8536-15 |
| METHYL BROMIDE QUARANTINE FUMIGANT | 8536-29 |
| METABROM 100 | 8622-16 |
| METABROM Q | 8622-55 |
| INBROM 100 QUARANTINE FUMIGANT | 92448-1 |
Tables for Determining Buffer Zone Distances
- Instructions for determining the correct table to use for each type of application.
- Buffer zone distances for each application:
TREATMENT BUFFER ZONES
| TREATMENT TIME | BUFFER ZONE FILE (includes application rate, enclosure size, and retention rate) |
|---|---|
| 8 hours or less | |
| More than 8 hours |
AERATION BUFFER ZONES
| AERATION TIME | AERATION METHOD
|
STACK HEIGHT For attached stacks, measured from the base of the roof of the enclosure. For open-area stacks, measured from the ground. Always round down to lowest stack height. |
BUFFER ZONE FILE Includes application rate, enclosure size, and retention rate, and air exchange rate. |
|---|---|---|---|
| 8 hours or less | Passive | n/a | Use 8 hours or less Treatment Buffer Zone |
| 8 hours or less | Active Aeration: Attached Vertical Stacks | 0 feet | Use 8 Hours or Less Active Aeration: Open-Area Vertical Stacks 5 feet Buffer Zone |
| 8 hours or less | Active Aeration: Attached Vertical Stacks | 5 feet | Use 8 Hours or Less Active Aeration: Open-Area Vertical Stacks 5 feet Buffer Zone |
| 8 hours or less | Active Aeration: Attached Vertical Stacks | 10 feet | |
| 8 hours or less | Active Aeration: Attached Vertical Stacks | 25 feet | |
| 8 hours or less | Active Aeration: Attached Vertical Stacks | 50 feet | |
| 8 hours or less | Active Aeration: Open-Area Vertical Stacks | 5 feet | |
| 8 hours or less | Active Aeration: Open-Area Vertical Stacks | 10 feet | |
| 8 hours or less | Active Aeration: Open-Area Vertical Stacks | 25 feet | |
| 8 hours or less | Active Aeration: Open-Area Vertical Stacks | 50 feet | |
| 8 hours or less | Active Aeration: No Stacks | n/a | |
| 8 hours or less | Active Aeration: Horizontal Stacks | n/a | |
| More than 8 hours | Passive | n/a | Use More than 8 Hours Treatment Buffer Zone |
| More than 8 hours | Active Aeration: Attached Vertical Stacks | 0 feet | Use More than 8 Hours Active Aeration: Open-Area Vertical Stacks 5 feet Buffer Zone |
| More than 8 hours | Active Aeration: Attached Vertical Stacks | 5 feet | Use More than 8 Hours Active Aeration: Open-Area Vertical Stacks 5 feet Buffer Zone |
| More than 8 hours | Active Aeration: Attached Vertical Stacks | 10 feet | |
| More than 8 hours | Active Aeration: Attached Vertical Stacks | 25 feet | |
| More than 8 hours | Active Aeration: Attached Vertical Stacks | 50 feet | |
| More than 8 hours | Active Aeration: Open-Area Vertical Stacks | 5 feet | |
| More than 8 hours | Active Aeration: Open-Area Vertical Stacks | 10 feet | |
| More than 8 hours | Active Aeration: Open-Area Vertical Stacks | 25 feet | |
| More than 8 hours | Active Aeration: Open-Area Vertical Stacks | 50 feet | |
| More than 8 hours | Active Aeration: No Stacks | n/a |