Breathing rate
Breathing rate is volume of breaths per day. Breathing rate is used in risk assessment of inhaled toxic compounds.
General data on breathing rates by age and gender are available from the EPA [1985, 1989a] and the ICRP [1975]. Values in Table B-1 are taken primarily from the ICRP [1975] with variances estimated by McKone and Daniels [1991]. The working breathing rate is for 8 hours of work and, when combined with 8 hours of breathing at the active rate and 8 hours at the resting rate, gives a daily equivalent intake of 30 m3 for an adult [EPA, 1989b]. Layton [1992] has derived breathing rates that are consistent with the quantities of oxygen needed to metabolize reported dietary intakes of fats, carbohydrates, and proteins. He has shown that the values in Table B-1 could be high by a factor of from 20% to 30%, but this is within the CV reported here.[ttp://www.lbl.gov/ehs/esg/tritium/tritium/TritAppB.html]
Contents
Unit
m3/day
Result
Table 1. Breathing rates based on Cerna et al 1998.
| Age group | Inhalation volume (m3/day) |
| Adult | 20 |
| Children (8-10y) | 10 |
| Children (1y) | 3.8 |
| New born | 0.8 |
References
- Cerna et al 1998
- Kalaiarasan et al 2009
- Metabolically Derived Human Ventilation Rates: A Revised Approach Based Upon Oxygen Consumption Rates (Final Report) [1]
- Arcus-Arth, Amy; Blaisdell, Robert J: Risk Analysis, Volume 27, Number 1, February 2007 , pp. 97-110(14)[2]
see also
- Respiratory rate as number of breaths a living being [3].
