Breathing rate: Difference between revisions

From Opasnet
Jump to navigation Jump to search
 
(2 intermediate revisions by 2 users not shown)
Line 1: Line 1:
Breathing rate can be measured as volume of breaths per day. Breathing rate is used in risk assessment of inhaled toxic compounds. US EPA have provided a report where they have calculated an individual's ventilation rate directly from their oxygen consumption rate. This revised approach will be used to update the ventilation rate information in the [http://cfpub.epa.gov/ncea/cfm/recordisplay.cfm?deid=12464| Exposure Factors Handbook], which serve as a resources for exposure assessors for calculating inhalation and other exposures.
[[Category:Person or group]]
[[Category:Population characteristics]]
{{variable|moderator=Pauliina}}


==Scope==


==Unit==
What is the breathing rate (the volume of air breathed per a time unit) in different age groups in humans?
m3/day or m3/s
 
==Definition==
 
===Data===
 
Breathing rate can be measured as volume of breaths per day. Breathing rate is used in risk assessment of inhaled toxic compounds. US EPA have provided a report where they have calculated an individual's ventilation rate directly from their oxygen consumption rate. This revised approach will be used to update the ventilation rate information in the [http://cfpub.epa.gov/ncea/cfm/recordisplay.cfm?deid=12464 Exposure Factors Handbook], which serve as a resources for exposure assessors for calculating inhalation and other exposures.


==Result==
Table 1. Descriptive statistics (mean values) for daily average ventilation rate (m3/day) in females and males, by age category, Unadjusted for Body Weight; m3/day).<ref>[http://cfpub.epa.gov/ncea/cfm/recordisplay.cfm?deid=202543| U.S. EPA. Metabolically Derived Human Ventilation Rates: A Revised Approach Based Upon Oxygen Consumption Rates (Final Report). U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-06/129F, 2009.]</ref>
Table 1. Descriptive statistics (mean values) for daily average ventilation rate (m3/day) in females and males, by age category, Unadjusted for Body Weight; m3/day)[http://cfpub.epa.gov/ncea/cfm/recordisplay.cfm?deid=202543].


{| {{prettytable}}
{| {{prettytable}}
Line 73: Line 80:




Table 2. Breathing rates based on Cerna et al 1998.
Table 2. Breathing rates based on Cerna et al 1998.<ref>[[:Image:Cerna98 RA air poll BR.pdf| Cerna et al 1998]]</ref>
{| {{prettytable}}
{| {{prettytable}}
| Age group
| Age group
Line 91: Line 98:
|----
|----
|}
|}
==Unit==
m3/day
===Formula===
==Result==
In general in exposure assessment 20 m3/ day is used as breathing rate value (see chapter 5 in [http://www.epa.gov/ncea/efh/pdfs/efh-chapter05.pdf Exposure Factors Handbook].
{{resultlink}}


==References==
==References==
*[[:Image:Cerna98 RA air poll BR.pdf| Cerna et al 1998]]
 
*[[:Image:Kalaiarasan09 PM resid build Health risk BR.pdf| Kalaiarasan et al 2009]]
*[[:Image:Kalaiarasan09 PM resid build Health risk BR.pdf| Kalaiarasan et al 2009]]
*[http://cfpub.epa.gov/ncea/cfm/recordisplay.cfm?deid=202543| U.S. EPA. Metabolically Derived Human Ventilation Rates: A Revised Approach Based Upon Oxygen Consumption Rates (Final Report). U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-06/129F, 2009.]
*Arcus-Arth, Amy; Blaisdell, Robert J:  Risk Analysis, Volume 27, Number 1, February 2007 , pp. 97-110(14)[http://www.ingentaconnect.com/content/bpl/risk/2007/00000027/00000001/art00011]
*Arcus-Arth, Amy; Blaisdell, Robert J:  Risk Analysis, Volume 27, Number 1, February 2007 , pp. 97-110(14)[http://www.ingentaconnect.com/content/bpl/risk/2007/00000027/00000001/art00011]
*[http://www.lbl.gov/ehs/esg/tritium/tritium/TritAppB.html]
*[http://www.lbl.gov/ehs/esg/tritium/tritium/TritAppB.html]

Latest revision as of 10:03, 10 August 2009



Scope

What is the breathing rate (the volume of air breathed per a time unit) in different age groups in humans?

Definition

Data

Breathing rate can be measured as volume of breaths per day. Breathing rate is used in risk assessment of inhaled toxic compounds. US EPA have provided a report where they have calculated an individual's ventilation rate directly from their oxygen consumption rate. This revised approach will be used to update the ventilation rate information in the Exposure Factors Handbook, which serve as a resources for exposure assessors for calculating inhalation and other exposures.

Table 1. Descriptive statistics (mean values) for daily average ventilation rate (m3/day) in females and males, by age category, Unadjusted for Body Weight; m3/day).[1]

Females Males
Birth to <1 year 8.53 8.76
1 year 13.31 13.49
2 years 12.74 13.23
3 to <6 years 12.16 12.65
6 to <11 years 12.41 13.42
11 to <16 years 13.44 15.32
16 to <21 years 13.59 17.22
21 to <31 years 14.57 18.82
31 to <41 years 14.98 20.29
41 to <51 years 16.2 20.93
51 to <61 years 16.18 20.91
61 to <71 years 12.99 17.94
71 to <81 years 12.04 16.35
81 years and older 11.14 15.15


Table 2. Breathing rates based on Cerna et al 1998.[2]

Age group Inhalation volume (m3/day)
Adult 20
Children (8-10y) 10
Children (1y) 3.8
New born 0.8

Unit

m3/day

Formula

Result

In general in exposure assessment 20 m3/ day is used as breathing rate value (see chapter 5 in Exposure Factors Handbook.


{{#opasnet_base_link:Op_en3499}}


References

See also

  • Respiratory rate as number of breaths a living being [3].
  1. ↑ U.S. EPA. Metabolically Derived Human Ventilation Rates: A Revised Approach Based Upon Oxygen Consumption Rates (Final Report). U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-06/129F, 2009.
  2. ↑ Cerna et al 1998
Retrieved from "https://en.opasnet.org/index.php?title=Breathing_rate&oldid=10623"