The Servicio Fitosanitario del Estado said that in its continuing checking of pineapples, it found that 70 percent have no measurable chemical residue and 30 percent have residue below the standards for human consumption.
The cultivation of pineapple is a $681 million business annually and occupies 42,000 hectares, said the service.
The farms are notorious for polluting the adjacent waterways. There is heavy use of agrochemicals. However, products going to market are washed.
The service also checks fresh vegetables, and it reported that in 2013 their samples showed that just 4 percent has residue above permitted standards.
The reports follow another revelation that pregnant women living near banana plantations have higher concentrations of certain agrochemicals in their urine.