wondering if anyone has suggestions, experience, etc. for this situation. Online and in some books home car exhaust is not discussed much and a few authors have said there is very little research on it other than if area is heavily polluted to grow root veges and also take off outer layers of other produce and wash well. We are in a small city - Olympia, WA with usually great air quality and I am in the process of setting up an area for growing organic veges in a sheet mulch but it is about 10 feet south of our carport with only our cars using the carport. Wind usually blows from south or southwest as far as I have read.... considering cold frame, but not sure if it is really necessary to protect the food. A short 2 foot wide hedgerow with grasses, herbs/rosemary/flowers are bordering the south border of the carport prior to the garden area....
thanks!
