PMID- 24640966 OWN - NLM STAT- MEDLINE DCOM- 20141121 LR - 20191210 IS - 1091-7691 (Electronic) IS - 0895-8378 (Linking) VI - 26 IP - 5 DP - 2014 Apr TI - Assessment of the risk of respiratory sensitization from fragrance allergens released by air fresheners. PG - 310-8 LID - 10.3109/08958378.2014.888110 [doi] AB - Consumers using air fresheners are exposed to the emitted ingredients, including fragrances, via the respiratory tract. Several fragrances are known skin sensitizers, but it is unknown whether inhalation exposure to these chemicals can induce respiratory sensitization. Effects on the immune system were assessed by testing a selection of five fragrance allergens in the respiratory local lymph node assay (LLNA). The probability and extent of exposure were assessed by measuring concentrations of the 24 known fragrance allergens in 109 air fresheners. It was shown that the most frequently used fragrances in air fresheners were D-limonene and linalool. In the respiratory LLNA, these fragrances were negative. Of the other tested chemicals, only isoeugenol induced a statistically significant increase in cell proliferation. Consumer exposure was assessed in more detail for D-limonene, linalool, and isoeugenol by using exposure modeling tools. It was shown that the most frequently used fragrances in air fresheners, D-limonene, and linalool gave rise to a higher consumer exposure compared with isoeugenol. To evaluate whether the consumer exposure to these fragrances is low or high, these levels were compared with measured air concentrations of diisocyanates, known human respiratory sensitizers. This comparison showed that consumer exposure from air fresheners to D-limonene, linalool, and isoeugenol is considerably lower than occupational exposure to diisocyanates. By combing this knowledge on sensitizing potency with the much lower exposure compared to diisocyanates it seems highly unlikely that isoeugenol can induce respiratory sensitization in consumers using air fresheners. FAU - ter Burg, Wouter AU - ter Burg W AD - National Institute for Public Health and the Environment , Bilthoven , The Netherlands . FAU - Bouma, Krista AU - Bouma K FAU - Schakel, Durk J AU - Schakel DJ FAU - Wijnhoven, Susan W P AU - Wijnhoven SW FAU - van Engelen, Jacqueline AU - van Engelen J FAU - van Loveren, Henk AU - van Loveren H FAU - Ezendam, Janine AU - Ezendam J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140318 PL - England TA - Inhal Toxicol JT - Inhalation toxicology JID - 8910739 RN - 0 (Acyclic Monoterpenes) RN - 0 (Air Pollutants) RN - 0 (Allergens) RN - 0 (Cyclohexenes) RN - 0 (Monoterpenes) RN - 0 (Perfume) RN - 0 (Terpenes) RN - 3T8H1794QW (Eugenol) RN - 5M0MWY797U (isoeugenol) RN - 9MC3I34447 (Limonene) RN - D81QY6I88E (linalool) SB - IM MH - Acyclic Monoterpenes MH - Air Pollutants/analysis/*toxicity MH - Air Pollution, Indoor/*adverse effects MH - Allergens/analysis/*toxicity MH - Animals MH - Cyclohexenes/toxicity MH - Eugenol/analogs & derivatives/toxicity MH - Inhalation Exposure/adverse effects MH - Limonene MH - Local Lymph Node Assay MH - Male MH - Mice MH - Mice, Inbred BALB C MH - Monoterpenes/toxicity MH - Perfume/analysis/*toxicity MH - Respiratory Hypersensitivity/*chemically induced MH - Risk Assessment MH - Terpenes/toxicity EDAT- 2014/03/20 06:00 MHDA- 2014/12/15 06:00 CRDT- 2014/03/20 06:00 PHST- 2014/03/20 06:00 [entrez] PHST- 2014/03/20 06:00 [pubmed] PHST- 2014/12/15 06:00 [medline] AID - 10.3109/08958378.2014.888110 [doi] PST - ppublish SO - Inhal Toxicol. 2014 Apr;26(5):310-8. doi: 10.3109/08958378.2014.888110. Epub 2014 Mar 18.