Table 1.
Description of the investigated environments.
| Producer, crop | Production environment | Number of stationary samplers | Number of personal samplers | Work tasks | Plant stage | Date for air sampling |
| T-1, tomato | Greenhouse | 3 | 6 | Harvesting, nurturing | Mature | 22 May 2007 |
| T-1, tomato | Greenhouse | 3 | 5 | Clearinga | Senescent | 12 November 2007 |
| T-2, tomato | Greenhouse | 3 | 9 | Harvesting, nurturing | Mature | 19 June 2007 |
| T-2, tomato | Greenhouse | 3 | 7 | Clearinga | Senescent | 14 November 2007 |
| T-3, tomato | Greenhouse | 3 | 8 | Nurturing | Premature | 20 and 26 February 2008 |
| T-3, tomato | Greenhouse | 3 | 8 | Harvesting, nurturing | Mature | 20 May 2008 |
| C-1, cucumber | Greenhouse | 3 | 10 | Harvest, nurturing | Mature | 13 June 2007 |
| C-1, cucumber | Greenhouse | 3 | 5 | Harvesting | Senescent | 09 October 2007 |
| C-1, cucumber | Greenhouse | 2 | 8 | Clearinga | Senescent | 11 October 2007 |
| C-2, cucumber | Greenhouse | 3 | 7 | Harvesting, nurturing | Mature | 26 June 2007 |
| C-2, poinsettia | Packing facility | 1 | 6 | Pottingb | Young | 08 August 2007 |
| F-1, broccoli, cabbage | Open field | 2 | 5 | Harvesting | Mature | 22 August 2007 |
| F-1, cabbage | Open field | 2 | 3 | Harvesting | Mature | 27 October 2008 |
| F-2, cabbage | Open field | 2 | 4 | Harvesting | Mature | 23 August 2007 |
| F-3, broccoli | Packing facility | 1 | 3 | Wrapping | Mature | 14 August 2007 |
| F-3, celery | Open field | 1 | 3 | Harvesting | Mature | 12 September 2007 |
| F-3, broccoli | Open field | 2 | 5 | Harvesting | Mature | 12 September 2007 |
a
Removal of senescent plants.
b
Potting of young poinsettia in a cucumber packing facility using a potting machine.