Skip to main content

Table 2 Particle exposure in the homes of the participants during sham and active indoor air filtration

From: An indoor air filtration study in homes of elderly: cardiovascular and respiratory effects of exposure to particulate matter

Filtration

Living room

Bedroom

Sham

Active

Sham

Active

Particle number count (#/cm3)

7669 (3435–45866)

5352 (1241–56654)

ND

ND

PM2.5 total massa (μg/m3)

8.0 (3.4–20.7)

4.3 (0.2–12.2)

7.6 (1.4–19.1)

3.7 (0–14)

PM2.5 black carbon (BC) (ng/m3)

ND

ND

480 (199–1328)

219 (19.6–545)

PM2.5 UV absorbing PM (UVPM) (ng/m3)

ND

ND

361 (191–792)

201 (43.5–454)

PAHb (ng/m3)

0.48 (0.06–2.4)

0.25 (0.02–2)

  
  1. Values are median (5th, 95th percentile). ND: not determined.
  2. aPM 2.5 total mass data have recently been reported elsewhere [19].
  3. bSum of 13 different polycyclic aromatic hydrocarbons (PAH): phenanthrene, anthracene, fluoranthene, pyrene, benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene, perylene, indeno(1,2,3-c,d)pyrene, dibenzo(a,h)anthracene, benzo(g,h,i)perylene.
Back to article page

Environmental Health

ISSN: 1476-069X