Some geography students have been conducting fieldwork in an urban area to assess the success of a recent inner-city regeneration scheme.
As part of their primary data collection, they completed an Environmental Quality Index (EQI) survey at one of their sampling sites, shown in the table below.
| Environmental Quality Indicator | -2 | -1 | 0 | 1 | 2 | Environmental Quality Indicator |
|---|---|---|---|---|---|---|
| High levels of atmospheric pollution | ✓ | Clean, fresh air with no noticeable odour | ||||
| Severe vehicle congestion and noise | ✓ | Pedestrianised area with no vehicle traffic | ||||
| Buildings derelict, vandalised or boarded up | ✓ | Buildings extremely well-maintained and modern | ||||
| Total absence of public green space | ✓ | Abundant, accessible parks and gardens | ||||
| Widespread litter, graffiti, and fly-tipping | ✓ | Spotless streets with no litter or graffiti |
Determine the total environmental quality score for this sampling site.