The New Zealand Food Safety Authority has given local fruit and vegetable growers a pass mark after its latest round of tests for chemical residue.

The NZFSA looked for traces of chemicals on bananas, bok choi, broccoli, cucumbers, grapes, nectarines, oranges and wheat.

Most concerning from the survey was six cases of the banned chemical endosulfan found on cucumber samples.

NZFSA Principal Adviser for Chemicals Paul Dansted says  while the levels detected weren’t dangerous, the matter is being investigated.

"We’re already in discussions with [the Environmental Risk Management Authority] and the Department of Labour around the use of these chemicals, and have already traced these products back to the original growers and are in discussions with them as well.”

“We’re very confident that the levels of residues we’ve found pose no risk whatsoever to human health."

"If the chemicals are used properly, the residues should be below those limits."

"If the residues are above those legal limits, it’s an indication that proper process hasn’t been followed, but it’s not an indication that the food is unsafe.

But the results haven’t won universal acclaim.

Soil & Health Association spokesperson Steffan Browning says 93 per cent pesticide detection is too high, and the NZFSA appears to be putting trade above food safety.

“The [NZFSA] seem to still look out for industry and trade by saying that such things are safe.

"It’s about time that NZFSA started to penalise producers that are using chemicals that are illegal, or consistently exceeding the limits of maximum residue, at least.”