While some samples returned with levels of lead and arsenic above the recommended thresholds, the levels did not pose an "unacceptable human health risk to the residents", authorities said.
Subsequently, field trials were conducted to assess this approach and recommended thresholds.
The fit indices for model 5 were substantially better, but still marginally lower than the recommended thresholds.
To assess the implications of lower threshold values, we tested for NR or F forest cover presence at half the recommended thresholds, considerably below published estimates.
Despite the significant reduction in effective visible light transmission, occupants working in the perimeter zones generally considered the levels of available daylight to be sufficient, even when daylight levels were below recommended thresholds for daylight autonomy.
Compared with international standards, both faecal coliform and helminth eggs levels exceeded recommended thresholds in water and lettuce, but still in a potential risk range which can be easily mitigated if farmers and households are aware of the potential risk.
