Table 2.
Cleaning session | Amount of product sprayed (g) | Association of amount sprayed with TVOC concentrationA | ||||
---|---|---|---|---|---|---|
|
|
|
||||
Cleaning product | nB | Median | Min | Max | betaC | p-valueD |
| ||||||
Bleach-based | 35 | 193 | 105 | 389 | 1.32 | 0.11 |
Quats-based | 39 | 206 | 126 | 592 | 2.01 | 0.01 |
Green | 42 | 215 | 121 | 484 | 0.08 | 0.84 |
WaterE | 45 | 218 | 132 | 446 | – | – |
Time-weighted average (TWA).
Each cleaning session was 20 min (2 in each visit); the numbers of sessions vary from the total sessions for each product due to missing data on the variables used in the analyses presented here.
Slope from mixed regression model with random person intercepts. Units: ppb/g of product.
From test of the null hypothesis: beta = 0.
Distilled water was used as a control product.