Quote:
I am curious on what basis of evidence you say that?
AFAIK, typical cedar shavings have a much higher concentration of volatile oils than typical pine shavings (as used by consumer, I mean, not necessarily when they first come offa the logs)
Reference would be welcome.
BTW, let me point out that this really only applies to fresh cedar and cedar shavings/chips... cedar POSTS, used outdoors, are a total nonissue (because of the ventilation coefficient of The Great Outdoors) and cedar lumber is probably pretty ok too because of the small surface area which has in many cases already been pretty well depleted of volatile oils.
Basically, if something smells like a cedar closet (or fresh-cut pine tree, or any other resinous strong smell) when it's in an enclosed space, it would be wisest not to use it in an enclosed space.
Pat
University of Guelph (Animal Science Program) has all these refrences on the subject...
Ayars GH, Altman LC, Frazier CE, Chi EY. (1989) The toxicity of constituents of cedar and pine woods to pulmonary epithelium. J Allergy Clin Immunol 1989 Mar;83(3):610-8
Campagnolo ER, Trock SC, Hungerford LL, Shumaker TJ, Teclaw R, Miller RB, Nelson HA, Ross F, Reynolds DJ. Outbreak of vesicular dermatitis among horses at a midwestern horse show. J Am Vet Med Assoc 1995 Jul 15;207(2):211-3
Feron VJ, Arts JH, Kuper CF, Slootweg PJ, Woutersen RA. Health risks associated with inhaled nasal toxicants. Crit Rev Toxicol 2001 May;31(3):313-47
Kacergis JB, Jones RB, Reeb CK, Turner WA, Ohman JL, Ardman MR, Paigen B. Air quality in an animal facility: particulates, ammonia, and volatile organic compounds. Am Ind Hyg Assoc J 1996 Jul;57(7):634-40
Thomas JC, Carlton DL, Barzak PF. An improved method for evaluating hardwood animal bedding products. Lab Anim (NY) 2001 Jun;30(6):43-6
Pelkonen KH, Hanninen OO. Cytotoxicity and biotransformation inducing activity of rodent beddings: a global survey using the Hepa-1 assay. Toxicology 1997 Sep 26;122(1-2):73-80
Potgieter FJ, Wilke PI. Laboratory animal bedding: a review of specifications and requirements. J S Afr Vet Assoc 1991 Sep;62(3):143-6
Potgieter FJ, Wilke PI, van Jaarsveld H, Alberts DW. The in vivo effect of different bedding materials on the antioxidant levels of rat heart, lung and liver tissue. J S Afr Vet Assoc 1996 Mar;67(1):27-30
Torronen R, Pelkonen K, Karenlampi S. Enzyme-inducing and cytotoxic effects of wood-based materials used as bedding for laboratory animals. Comparison by a cell culture study. Life Sci 1989;45(6):559-65. Erratum in Life Sci 1989;45(24):2381
Vandenput S, Istasse L, Nicks B, Lekeux P. Airborne dust and aeroallergen concentrations in different sources of feed and bedding for horses. Vet Q 1997 Nov;19(4):154-8
Vogelzang PF, van der Gulden JW, Folgering H, Heederik D, Tielen MJ, van Schayck CP. Longitudinal changes in bronchial responsiveness associated with swine confinement dust exposure. Chest 2000 May;117(5):1488-95
Ward PL, Wohlt JE, Katz SE. Chemical, physical, and environmental properties of pelleted newspaper compared to wheat straw and wood shavings as bedding for horses. J Anim Sci 2001 Jun;79(6):1359-69
Welker JA, Zaloga GP. Pine oil ingestion: a common cause of poisoning. Chest 1999 Dec; 116(6): 1822-6
Weichbrod RH, Cisar CF, Miller JG, Simmonds RC, Alvares AP, Ueng TH. Effects of cage beddings on microsomal oxidative enzymes in rat liver. Lab Anim Sci 1988 Jun;38(3):296-8
Whelan G. The influence of cage bedding on the metabolism of sulphobromophthalein sodium by an hepatic cytosol-located enzyme system. Aust J Biol Sci 1975 Feb;28(1):25-9
I am curious on what basis of evidence you say that?
AFAIK, typical cedar shavings have a much higher concentration of volatile oils than typical pine shavings (as used by consumer, I mean, not necessarily when they first come offa the logs)
Reference would be welcome.
BTW, let me point out that this really only applies to fresh cedar and cedar shavings/chips... cedar POSTS, used outdoors, are a total nonissue (because of the ventilation coefficient of The Great Outdoors) and cedar lumber is probably pretty ok too because of the small surface area which has in many cases already been pretty well depleted of volatile oils.
Basically, if something smells like a cedar closet (or fresh-cut pine tree, or any other resinous strong smell) when it's in an enclosed space, it would be wisest not to use it in an enclosed space.
Pat
University of Guelph (Animal Science Program) has all these refrences on the subject...
Ayars GH, Altman LC, Frazier CE, Chi EY. (1989) The toxicity of constituents of cedar and pine woods to pulmonary epithelium. J Allergy Clin Immunol 1989 Mar;83(3):610-8
Campagnolo ER, Trock SC, Hungerford LL, Shumaker TJ, Teclaw R, Miller RB, Nelson HA, Ross F, Reynolds DJ. Outbreak of vesicular dermatitis among horses at a midwestern horse show. J Am Vet Med Assoc 1995 Jul 15;207(2):211-3
Feron VJ, Arts JH, Kuper CF, Slootweg PJ, Woutersen RA. Health risks associated with inhaled nasal toxicants. Crit Rev Toxicol 2001 May;31(3):313-47
Kacergis JB, Jones RB, Reeb CK, Turner WA, Ohman JL, Ardman MR, Paigen B. Air quality in an animal facility: particulates, ammonia, and volatile organic compounds. Am Ind Hyg Assoc J 1996 Jul;57(7):634-40
Thomas JC, Carlton DL, Barzak PF. An improved method for evaluating hardwood animal bedding products. Lab Anim (NY) 2001 Jun;30(6):43-6
Pelkonen KH, Hanninen OO. Cytotoxicity and biotransformation inducing activity of rodent beddings: a global survey using the Hepa-1 assay. Toxicology 1997 Sep 26;122(1-2):73-80
Potgieter FJ, Wilke PI. Laboratory animal bedding: a review of specifications and requirements. J S Afr Vet Assoc 1991 Sep;62(3):143-6
Potgieter FJ, Wilke PI, van Jaarsveld H, Alberts DW. The in vivo effect of different bedding materials on the antioxidant levels of rat heart, lung and liver tissue. J S Afr Vet Assoc 1996 Mar;67(1):27-30
Torronen R, Pelkonen K, Karenlampi S. Enzyme-inducing and cytotoxic effects of wood-based materials used as bedding for laboratory animals. Comparison by a cell culture study. Life Sci 1989;45(6):559-65. Erratum in Life Sci 1989;45(24):2381
Vandenput S, Istasse L, Nicks B, Lekeux P. Airborne dust and aeroallergen concentrations in different sources of feed and bedding for horses. Vet Q 1997 Nov;19(4):154-8
Vogelzang PF, van der Gulden JW, Folgering H, Heederik D, Tielen MJ, van Schayck CP. Longitudinal changes in bronchial responsiveness associated with swine confinement dust exposure. Chest 2000 May;117(5):1488-95
Ward PL, Wohlt JE, Katz SE. Chemical, physical, and environmental properties of pelleted newspaper compared to wheat straw and wood shavings as bedding for horses. J Anim Sci 2001 Jun;79(6):1359-69
Welker JA, Zaloga GP. Pine oil ingestion: a common cause of poisoning. Chest 1999 Dec; 116(6): 1822-6
Weichbrod RH, Cisar CF, Miller JG, Simmonds RC, Alvares AP, Ueng TH. Effects of cage beddings on microsomal oxidative enzymes in rat liver. Lab Anim Sci 1988 Jun;38(3):296-8
Whelan G. The influence of cage bedding on the metabolism of sulphobromophthalein sodium by an hepatic cytosol-located enzyme system. Aust J Biol Sci 1975 Feb;28(1):25-9