國立虎尾科技大學 |

Children's Exposure to Airborne Fine Particulate Matter (PM2.5) Relative to an Adult in the Same Room.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Children's Exposure to Airborne Fine Particulate Matter (PM2.5) Relative to an Adult in the Same Room./
作者:	Fleming, Brandi Nicole.
面頁冊數:	1 online resource (34 pages)
附註:	Source: Masters Abstracts International, Volume: 85-07.
Contained By:	Masters Abstracts International85-07.
標題:	Public health. -
電子資源:	click for full text (PQDT)
ISBN:	9798381411812

Children's Exposure to Airborne Fine Particulate Matter (PM2.5) Relative to an Adult in the Same Room.
Fleming, Brandi Nicole.

Children's Exposure to Airborne Fine Particulate Matter (PM2.5) Relative to an Adult in the Same Room. - 1 online resource (34 pages)

Source: Masters Abstracts International, Volume: 85-07.

Thesis (M.P.H.)--San Diego State University, 2024.

Includes bibliographical references

Recent studies have demonstrated that children are more at risk than adults from airborne fine particulate matter (PM2.5) levels. Since people tend to spend more than 90% of their time indoors, indoor exposures are of particular concern. In the same indoor environment, children will receive a greater dose, pound for pound, than adults due to their higher breathing rate and lower body size. This research investigated whether children experience higher levels than adults due to indoor activity near the floor, which could resuspend toxic house dust. We measured PM2.5 .in the homes of (n=20 caregiver/ child pairs) at two elevations, children's height (0.25 meters) and adult height (1.5 meters), inside the rooms in the homes where the most human activity occurred. Minute-by-minute PM2.5 levels were assessed using low-cost air pollution monitors (Air Quality Egg Version 2) for an average of three consecutive days. The overall median difference between the minute-by-minute PM2.5 levels for child and adult height monitors within each home was +0.7μg /m3 in the child's height monitor, and an elevated value at the child's height was seen for 16/20 homes. The median difference between the minute-by-minute PM2.5 levels for child and adult height monitors when a child was present in the morning compared to when absent showed an increase of +1.4 µg/m3 in child height monitors and an increase in adult height monitors (+1.0 µg/m3 ). The median difference in PM2.5 levels related to air conditioning use showed a decrease in PM2.5 levels, -6.0μg /m3 in child height monitor and -4.7μg /m3 in adult height monitors when air conditioning was used. Fine particle mass concentrations recorded in the children's height monitors were a median of 26% (range, 5-41%) greater than the 75th percentile of the adult value). A median 13% (range, 4-33%) of children's height monitor PM2.5 had values greater than the 90th percentile of the adult value for that home). Our findings indicate that children's exposure and risks from indoor fine particulate matter may be underestimated when assessed using fine particulate matter concentrations obtained from a monitor in the home at adult height.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798381411812Subjects--Topical Terms:

560998
Public health.
Subjects--Index Terms:

Airborne fine particulate matterIndex Terms--Genre/Form:

554714
Electronic books.

Children's Exposure to Airborne Fine Particulate Matter (PM2.5) Relative to an Adult in the Same Room.
LDR:03544ntm a22003857 4500 001 1151474
005 20241112095331.5
006 m o d
007 cr mn ---uuuuu
008 250605s2024 xx obm 000 0 eng d
020 $a 9798381411812
035 $a (MiAaPQ)AAI30988921
035 $a AAI30988921
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Fleming, Brandi Nicole. $3 1478248
245 1 0 $a Children's Exposure to Airborne Fine Particulate Matter (PM2.5) Relative to an Adult in the Same Room.
264 0 $c 2024
300 $a 1 online resource (34 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Masters Abstracts International, Volume: 85-07.
500 $a Advisor: Quintana, Penelope J. E.
502 $a Thesis (M.P.H.)--San Diego State University, 2024.
504 $a Includes bibliographical references
520 $a Recent studies have demonstrated that children are more at risk than adults from airborne fine particulate matter (PM2.5) levels. Since people tend to spend more than 90% of their time indoors, indoor exposures are of particular concern. In the same indoor environment, children will receive a greater dose, pound for pound, than adults due to their higher breathing rate and lower body size. This research investigated whether children experience higher levels than adults due to indoor activity near the floor, which could resuspend toxic house dust. We measured PM2.5 .in the homes of (n=20 caregiver/ child pairs) at two elevations, children's height (0.25 meters) and adult height (1.5 meters), inside the rooms in the homes where the most human activity occurred. Minute-by-minute PM2.5 levels were assessed using low-cost air pollution monitors (Air Quality Egg Version 2) for an average of three consecutive days. The overall median difference between the minute-by-minute PM2.5 levels for child and adult height monitors within each home was +0.7μg /m3 in the child's height monitor, and an elevated value at the child's height was seen for 16/20 homes. The median difference between the minute-by-minute PM2.5 levels for child and adult height monitors when a child was present in the morning compared to when absent showed an increase of +1.4 µg/m3 in child height monitors and an increase in adult height monitors (+1.0 µg/m3 ). The median difference in PM2.5 levels related to air conditioning use showed a decrease in PM2.5 levels, -6.0μg /m3 in child height monitor and -4.7μg /m3 in adult height monitors when air conditioning was used. Fine particle mass concentrations recorded in the children's height monitors were a median of 26% (range, 5-41%) greater than the 75th percentile of the adult value). A median 13% (range, 4-33%) of children's height monitor PM2.5 had values greater than the 90th percentile of the adult value for that home). Our findings indicate that children's exposure and risks from indoor fine particulate matter may be underestimated when assessed using fine particulate matter concentrations obtained from a monitor in the home at adult height.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
650 4 $a Public health. $3 560998
650 4 $a Environmental studies. $3 1180247
650 4 $a Environmental health. $3 569475
653 $a Airborne fine particulate matter
653 $a Children's exposure
653 $a Adult
653 $a Home
655 7 $a Electronic books. $2 local $3 554714
690 $a 0470
690 $a 0477
690 $a 0573
710 2 $a San Diego State University. $b Public Health. $3 1478249
710 2 $a ProQuest Information and Learning Co. $3 1178819
773 0 $t Masters Abstracts International $g 85-07.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30988921 $z click for full text (PQDT)