|Now you know. Pallet parts have names.|
As a fan and proponent of reusing pallets in building projects, such as chicken coops and compost containers, I’m often asked if I think they are safe to use given that shippers and manufacturers fumigate them with pesticides.
In the United States quarantine regulations require that pallets be treated with methyl bromide, a pesticide being phased out due to its adverse effects on the ozone layer. According to Mary Howland Technical Service Manager at Great Lakes Chemical Corporation, a supplier of methyl bromide,
Methyl bromide products are restricted use pesticides. A certified applicator license is required to purchase and use these products and strict adherence to label directions/requirements is mandatory. Under normal fumigation conditions methyl bromide is a gas and when the pallets are properly aerated according to label instructions, virtually no methyl bromide residue remains on the pallets and wood materials.
Now I’m not a methyl bromide fan and I find it’s use as a soil fumigant in agricultural applications appalling. But I’m not too worried about reusing pallets. That being said, a Tylenol recall was linked to the use of tribromophenol (TBP) to fumigate pallets. Though, depending on if you believe the trade organizations behind wood pallets or plastic pallets (they hate each other), the Tylenol recall may have had nothing to do with TBP which is not used to fumigate pallets in the US.
So, as with most issues on this blog, no easy answer. But I’m still not concerned about using pallets as a building material.