The legislation to cover these rights is still inadequate. You will probably have to struggle for much of the information you need. A citizen should also have easy access to information on how local crops could be grown with much reduced use of chemical pesticides. Apart from legal rights, some active citizen groups have obtained rights under local codes of practice. Sprayed pesticide can drift either as vapour or as droplets.
Volatile pesticides are ones which evaporate quickly, especially in hot dry weather.
A large part of a volatile pesticide, such as an ester of 2,4-D, may drift for miles in an unpredictable way. Pesticides which do not evaporate so quickly are spread as droplets of various sizes, as in rain, mist or fog. The finer the spray, the further it drifts. Most aerially sprayed pesticide is applied at Ultra Low Volume, with very fine spray. The best equipment produces droplets of fairly uniform size and ostensibly predictable survival and drift.