Worker Re-entry

Agrochemex International has a dedicated team responsible for conducting worker re-entry studies throughout Europe and further afield. Worker re-entry studies are conducted to establish safe re-entry intervals for workers in a multitude of different scenarios from outdoor field activities (e.g. pruning/thinning of apple orchards) to greenhouse activities (e.g. picking/bundling flowers, etc).

The sampling techniques for worker re-entry are similar to the passive dosimetry techniques used for operator exposure studies.


Defined roles for field team (field observers, DFR sampling, field fortification, dosimeter sampling, etc.)

 Study plan and field notebook preparation Pre-study “fact finding” trips to confirm procedures)
Worker selection 

Pre-field analytical validation

Test item logistics

Monitored applications prior to re-entry

Maximum no. applications at highest rate and minimum interval

Monitored re-entry activities with field observers

Photographic documentation and detailed observation logs

Field fortification

Trained technician in the field for each day of fortification

Exposure field sampling

Experienced field sampling team. On-site freezer trailer.

Sample transport and chain of custody

Dedicated frozen sample shipment within Europe

Sample analysis

According to robust pre-validated methods


Fully integrated report with statistical evaluation. 

With an experienced and flexible dedicated team lead by Andrew Wilson, AgroChemex International is ideally suited to being your partner for the conduct of these complex studies