In October 2009, FM Global conducted full-scale fire tests to compare the environmental impact of sprinklered and non-sprinklered home fires. The tests showed that in the event of a home fire:
- Greenhouse gas emissions were cut by 97.8%
- Water usage was reduced between 50% and 91%
- Fewer persistent pollutants, such as heavy metals, were found in sprinkler wastewater versus fire hose water
- The high pH level and pollutant load of non-sprinkler wastewater are an environmental concern
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