Article source: https://www.straitstimes.com/singapore/environment/over-73k-disbursed-to-environmental-groups-as-foundation-expands-support-to-singapore SINGAPORE – Efforts to address haze pollution, conserve natural heritage and cultivate environmental literacy have been bolstered with more than $73,000 in funding as a Singapore-based foundation expands its support to environmental causes here for the first time. On May 22, the Pan Pacific Conservation Foundation (PPCF) anno

Did you know that the Pollutant Standards Index (PSI) reached a record high of 401 ppm in 2013? So how do we use PSI to decide what...