EXPOSURE TO RESPIRABLE DUST IN POULTRY HOUSES DURING SPECIFIC WORKING TASKS. Brame Coline, Chambre d Agriculture de Bretagne Nathalie Rousset, ITAVI

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1 EXPOSURE TO RESPIRABLE DUST IN POULTRY HOUSES DURING SPECIFIC WORKING TASKS Brame Coline, Chambre d Agriculture de Bretagne Nathalie Rousset, ITAVI

2 Airborne Dust organic and inorganic components such as fungi, spores, bacteria, viruses, and chemicals (antibiotics) inhalable Diameter (µm) Occupational exposure limit (8hours exposure period) Other Limits 2 thoracic respirable Inhalable < 100 µm / Thoracic < 30 µm 10 mg/m 3 Respirable < 10 µm 5 mg/m mg/m 3 1 Limit values are evaluated for 8 hours exposure period INRS Donhand et al : dose/response Reproduction et communication à un tiers après autorisation préalable de la Chambre d agriculture de Bretagne 2 2

3 Airborne Dust organic and inorganic components such as fungi, spores, bacteria, viruses, and chemicals (antibiotics) inhalable Diameter (µm) Occupational exposure limit (8hours exposure period) Other Limits 2 thoracic respirable Inhalable < 100 µm / Thoracic < 30 µm 10 mg/m 3 Respirable < 10 µm 5 mg/m mg/m 3 1 Limit values are evaluated for 8 hours exposure period INRS Donhand et al : dose/response Reproduction et communication à un tiers après autorisation préalable de la Chambre d agriculture de Bretagne 3

4 AIMS Evaluate the quality of ambient air in poultry houses and the level of dust exposure from breeders and its impact on the health of farmers Projet AIR Eleveur (CASDAR ) Reproduction et communication à un tiers après autorisation préalable de la Chambre d agriculture de Bretagne 4 4

5 4 Exposing to respirable dusts 1) Air quality in the poultry houses and air quality inspired by workers respirable dust < 5µm NH 3 Inspection I Catching Manure Litter of animals Birds C disposal (MAN) distribution (LIT) (INSP) (CATCH) (MAN) (LIT) During each exposing Poultry Houses Respirable dusts in the bulding ambient air (DAMB) Measure [NH3] Workers Exposure to Respirable Dusts (DEXPO) Reproduction et communication à un tiers après autorisation préalable de la Chambre d agriculture de Bretagne 5

6 21 broilers in Britany : 19 farms specialised in broilers poultry and 31 workers Concrete floor (4/49) Lights system Reproduction et communication à un tiers après autorisation préalable de la Chambre d agriculture de Bretagne 6 6

7 21 broilers in Britany : 19 farms specialised in broilers poultry and 31 workers Forced ventilation system: longitudinal extraction system Reproduction et communication à un tiers après autorisation préalable de la Chambre d agriculture de Bretagne 7 7

8 21 broilers in Britany : 19 farms specialised in broilers poultry and 31 workers Heat exchangers Reproduction et communication à un tiers après autorisation préalable de la Chambre d agriculture de Bretagne 8 8

9 168 exposing : 43 Inspection of animals «INSP», 43 Catching of birds «CATCH», 38 Manure disposal «MAN», 44 Litter distribution «LIT» Animal monitoring Repairing and adjusting equipment Weighing animals Addition of litter INSP 34 min CATCH 3h19 Catching the birds Count the number of animal in the containers and check the work Load and unload the containers to the truck from the houses Monitor task and organiz work Driving the tractor and put the bales in straw grinding and spreader Mecanical distribution with straw spreader or bale feeder Manual litter spreading LIT 1h42 MAN 2h35 Pick up manure with the tractor - Pick up manure at the fork on the edge of bulding Sweeping the building (manually or mechanically) Reproduction et communication à un tiers après autorisation préalable de la Chambre d agriculture de Bretagne 9 9

10 Respirable Dust concentration (mg/m3) Introduction a Respirable dust in the ambient (DAMB) a Levels of respirable dust concentration are higher in INSP et LIT than CATCH and MAN b b Large variability INSP (n=33) CATCH (n=38) MAN (n=27) LIT (n=44) 16 LLQ 5 LLQ 11 LLQ 0 LLQ 4 > 5 mg/m 3 1 > 1.6 mg/m 3 2> 5 mg/m 3 10 > 1.6 mg/m 3 17> 1.6 mg/m 3 Reproduction et communication à un tiers après autorisation préalable de la Chambre d agriculture de Bretagne 10 10

11 Respirable Dust concentration (mg/m3) Introduction Respirable dusts exposure a Exposure of respirable dust (DEXPO) ab INSP are the more exposing than CATCH, MAN and LIT b b Large variability = f(livestock mangement) 0 INSP (n=33) CATCH (n=38) MAN (n=27) LIT (n=41) 15 LLQ 5 LLQ 11 LLQ 0 LLQ 2 > 5 mg/m 3 3 > 1.6 mg/m 3 3 > 1.6 mg/m 3 11 > 1.6 mg/m 3 2 > 5 mg/m 3 9 > 1.6 mg/m 3 Reproduction et communication à un tiers après autorisation préalable de la Chambre d agriculture de Bretagne 11 11

12 Respirable dusts exposure Factors increasing DAMB and DEXPO concentrations INSP CATCH LIT MAN DAMB Short duration animal activities Long task duration Ventilation system on Suspending particles No effect DEXPO Short duration animal activities Manually catching animals (not significant) Contact with animals Manually litter distribution (not significant) No effect Reproduction et communication à un tiers après autorisation préalable de la Chambre d agriculture de Bretagne 12

13 Comparison DEXPO with the measures in hatchery or laying hens Respirable dust exposure (mg/m 3 ) Mean +/- deviation Palmiped hatchery Poultry hatchery Laying hens houses Poultry Houses Hatching 0.48 (0.3) 0.10 (0.08) Incubation 0.15 (0.11) 0.02 (0.02) Reference: Sépia Santé 0.27 (0.2) INSP: 2.48 CATCH:0.56 MAN: 0.20 LIT: 1.45 Alert pollution threshold for PM 10µm Daily mean: 80 µg/m³ x 9 15 Reproduction et communication à un tiers après autorisation préalable de la Chambre d agriculture de Bretagne 15

14 Thanks you for attention and Thanks to my colleagues and farmers to our participation Protecting mask in hatchery 16 Reproduction et communication à un tiers après autorisation préalable de la Chambre d agriculture de Bretagne 16