Table 3 Risk classification of individual PAHs and ΣPAHs.
From: Innovative isotopic modeling and risk assessment of PTEs and PAHs in urban soils
Individual PAHs | Σ ΠΑΗΣ | ||||
|---|---|---|---|---|---|
RQ(NCS) | RQ(MPCS) | RQ SPAHS (NCS) | RQ SPAHS(MPCS) | ||
Risk-free | < 1 | < 1 | Risk-free | < 1 | < 1 |
Low-risk | ≥ 1, < 800 | < 1 | |||
Moderate-risk | ≥ 1 | < 1 | Moderate-risk1 | ≥ 800 | < 1 |
Moderate-risk2 | ≤ 800 | ≥ 1 | |||
High-risk | ≥ 1 | ≥ 1 | High-risk | ≥ 800 | ≥ 1 |
