The amount of tons of air pollution urban forests remove annually
Compacted urban soils often worsen flooding because they reduce this key soil property that controls how easily water and air move through the ground
What is soil porosity?
OR
What is Infiltration/Percolation?
The most prominent airborne pollutant in cities (HINT: comes from industry and vehicle emissions)
What is PM2.5?
Intentional overlap between natural and semi-natural elements within the Urban Built Environment
What is Green Infrastructure?
The range of savings associated with installing a bioswale over gray stormwater infrastructure
The amount of heavy metals a bioswale might be able to reduce in urban stormwater
Urban soils can help reduce city temperatures by storing water that later cools the air through this process where water changes from liquid to vapor.
What is evaporation?
OR
What is evapotranspiration?
One of the most common contaminants in urban stormwater runoff
What is heavy metals?
OR
What is petroleum hydrocarbons?
What are Social, Economic, and Environmental sustainability?
One of the benefits of installing a Constructed Wetland (CW) over mechanical water remediation.
What is lifespan?
What is energy efficiency?
What is operational costs?
Urban soil microbial communities help break down hydrocarbons, pesticides, and other contaminants through this broad biological process that converts pollutants into less harmful substances
What is Biodegradation?
OR
What is Bioremediation?
The most common element contaminating urban soils
What is Lead?
This GI Feature is used as a robust stormwater management technique, taking advantage of root systems to mitigate runoff
What is a bioswale/rain garden?
What is a 75% reduction in heating/cooling costs?
The amount of carbon emissions urban plants can sequester on a daily basis
What is 30-60% of daily emissions?
Cities often add compost or organic material to urban soils because it improves soil structure and helps soils hold more of this resource that supports plants and reduces irrigation costs
What is soil moisture?
What is legionella?
This GI feature not only manages stormwater, but has tangible impacts on urban heat islands and air quality
What are Green Roofs?
Atlanta's per-capita ROI from investments in the urban forest
What is 5-15 dollars per capita?
Healthy urban soils can extend the lifespan of roads, sidewalks, and underground utilities by improving drainage and reducing this ground movement that can crack pavement and damage infrastructure
What is soil erosion?
What is air pollution? (PM2.5 & Ozone)
This GI element is a powerful bioremediational tool for removing waste in agricultural and urban watersheds
What is a Constructed Wetland?
Saving estimates for integrating multiple GI strategies in one development project
What is $120 million to 3.2 BILLION (City of Philadelphia)?