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Online Calculators and CalculationMethodologiesAIR / ENERGYSample Environmental Metrics for CARE ProjectsHealthy homes / Indoor air Home indoor environment evaluations (# of homes) Lead hazards reduced (# of homes) # of homes tested for radon/# that tested positive # of homes with radon reducing features as a result of project work (specify existingvs. new builds if known)Energy Clean energy produced/ purchased (what kind/how much) Energy savings (what kind/how much)Energy / Outdoor air Diesel retrofits (either # and type of vehicle or estimated reductions) Idling reductions (either type of vehicle and time reduced or estimated reductions) Emissions avoided from autobody shopsAir Quality CalculatorsThe Office of Air and Radiation maintains a list of online calculators available on their website.This page has links to calculators for pollution prevention at small businesses (includingautobody shops, dry cleaners, electroplating, lodging, metal operations, and painting andcoating operations), lawnmower and gas can exchange programs, as well as more advanced airquality models. ttp://www.epa.gov/dfe/pubs/projects/auto/Combined Heat and Power (CHP) Emissions CalculatorThe Combined Heat and Power (CHP) Emissions Calculator compares the anticipated carbondioxide (CO2), sulfur dioxide (SO2), and nitrogen oxide (NOx) emissions from a CHP system tothose of a separate heat and power system. The calculator also presents estimated emissionsreductions as metric tons of carbon equivalent, acres of trees planted, and emissions from cars,as shown below. a.gov/care1

Diesel Emissions QuantifierThe Diesel Emissions Quantifier can help track reductions in NOx, PM, HC, CO and CO2 due totechnology improvements or fuel changes in diesel engines. To use this calculator, the usermust be able to input the approximate number and types of vehicles affected, the volume andtype of fuel used, the vehicle miles traveled, and the idling hours. The quantifier can be found nti-Idling CalculatorClean School Bus USA has an online tool that can calculate fuel savings for a given number ofschool buses and minutes of idling avoided.http://www.epa.gov/OMS/schoolbus/idle fuel calc.htmCarbon Dioxide EmissionsThere are a number of websites that can calculate household or business CO2 emissions. TheEPA website hosts an emissions calculator athttp://www.epa.gov/climatechange/emissions/ind calculator.htmlSmartway Savings CalculatorThis calculator helps truck owners compare costs and estimate the fuel savings associated withvarious efficiency technologies. mBest Workplaces for Commuters calculatorThis calculator helps employers estimate the financial, environmental, and traffic benefits ofjoining the Best Workplaces for Commuters c508.htmlPM CalculatorThis EPA calculator can estimate PM emissions reductions for point-source controltechnologies. ower and Gas Can Exchange Program xchange scan calculator.htmlCLIMATE / GREENHOUSE GAS / CARBONEPA Greenhouse Gas CalculatorThis calculator converts greenhouse gas-related savings estimates, typically presented in"million metric tons of carbon dioxide equivalents," into familiar terms such as the greenhousegas emissions that would result from:··Driving a particular number of cars for a year,Using a particular amount of gasoline or barrels of oil,www.epa.gov/care2

·····Using a particular number of tanker trucks' worth of gasoline,Providing energy to a particular number of homes for a year,Growing trees across a particular number of acres for a year,Recycling a particular quantity of waste instead of sending it to the landfill, orGenerating electricity from a particular number of coal fired power plants for a year.Users can enter savings in emissions, electricity consumption, gallons of gasoline, or number ofvehicles into the calculator and determine up to 13 different ways to express the magnitude ofthe savings. The calculator uses the latest emission factors, approaches and statistics availablethrough 2007.As an example, if a typical household switched all its incandescent light bulbs to Energy Starqualified compact fluorescent light bulbs, it would save about 75 percent of the lightingelectricity use, or about 1,463 kWh a year. After five years, these energy savings are equivalentto:·····Saving about 10,289 pounds of CO2 emissions,Conserving 530 gallons of gasoline,Saving 11 barrels of oil,Planting 120 tree seedlings, orRecycling 1.6 tons of waste.Information on the calculator: culator.htmlEnvironmental Benefits of Planting Trees2006 Level II grantee Sonora Environmental Research Institute (SERI) has developed a way tomeasure the environmental benefits of planting trees. Project Officer Periann Wood(wood.periann@epa.gov) can help answer your questions about how this formula wasdeveloped.Estimated Annual Benefits For Residential Tree Opposite The West-FacingWall for 260 treesElectricity savingsNatural gas savingsCarbon dioxideOzoneNO2SO2PM10www.epa.gov/careAmountper 80.605293.6UnitskWhkBtulblblblblb3

VOCsBVOCs*0.03-1Total lbs7.8-260lblb95,438Reference:Desert Southwest Community Tree Guide: "Benefits, Costs andStrategic Planning", McPherson, Simpson, Peper, Maco, Xiao andMulrean, July 2004*BVOCs- biogenic volatile organic compoundsBenefits were calculated with numerical models and input data fromboth regional (e.g., pollutant emission factors for avoided emissionsdue to energy savings) and local sources (e.g., Phoenix climate data forenergy effects). Regional electricity and natural gas prices were used inthis study to quantify energy savings.WATERSample Environmental Metrics for CARE ProjectsWater Point-source toxics reductions (what/how much)Non-point source toxics reductions (what/how much)Point-source nutrient reductions (what/how much)Non-point-source nutrient reductions (what/how much)Source water protection activities (what/how much)Reduced water usage (how much)Improvements to drinking water quality (what/how much)Other improvements to water quality (what/how much)GreenValues Stormwater CalculatorThis calculator can help quantify reductions in stormwater discharge for landscapeinterventions such as native plant landscaping, green roofs, and increased tree er Estuary Monitoring: A Methods Manual - Methods for volunteer monitoring ofestuarine waters. r Lake Monitoring: A Methods Manual - Methods for volunteer monitoring of .pdfVolunteer Stream Monitoring: A Methods Manual - Methods for volunteer monitoring ofstreams. m/www.epa.gov/care4

Volunteer Wetland Monitoring: An Introduction and Resource GuideThis resource guide describes a selection of handbooks and manuals that offer detailedinformation on volunteer wetland r/volmonitor.pdfErosion Control CalculatorThe Excel Erosion Control Calculator is designed to help landscaping and constructioncompanies estimate the cost of using environmentally beneficial compost filter berms orcompost filter socks for erosion control, rather than conventional silt fences. The Cost Calculatordemonstrates that environmentally preferable erosion control methods are very costcompetitive for all project sizes and durations, and that they offer significant savings forprojects that run for more than a few eenscapes/tools/index.htmSub-Surface Drip Irrigation Cost CalculatorThe Sub-Surface Drip Irrigation Cost Calculator compares the cost of landscaping irrigationwith a water-saving sub-surface drip irrigation system to the cost of irrigation with aconventional sprinkler system. To use the calculator, simply answer a few questions about yourlocal climate, the irrigation area, and your water bill. The calculator will display estimates ofhigh and low costs for sub-surface drip and conventional sprinkler irrigation, facilitating acomparison of initial, annual, and life span costs. In addition, you have the option of inputtingyour own cost information if you have it. The calculator demonstrates that environmentallypreferable sub-surface drip irrigation methods are very cost competitive compared withconventional sprinkler reenscapes/tools/index.htmWASTESample Environmental Metrics for CARE ProjectsSolid Waste Disposal improvement by type of waste (what/how much) Recycling amounts (lbs or tons a year) Waste minimization by type of waste (either hazardous or solid)Waste Reduction Model (WARM) CalculatorThis calculator estimates the greenhouse gas emissions reductions and energy savings fromseveral different waste management ste/calculators/Warm Form.htmlNational Recycling Coalition Environmental Benefits Calculatorwww.epa.gov/care5

The NRC Environmental Benefits Calculator helps determines the GHG and energy benefits ofcurrent waste disposal practices. Users enter data on the amount of various waste materialsthey landfill, recycle, and incinerate, and the tool calculates how that waste disposal scenariocompares with one in which all waste is land filled. The tool reports the benefits in terms ofGHGs and other air emissions, energy use, quantity of oil and gas consumed waterbornewastes, and other metrics. Results are also displayed according to economic sector and life-cyclestage, and automatically-generated charts and graphs provide an illustrated view of the results.This versatile tool can be used by businesses, universities, and government agencies, and maybe useful in demonstrating the benefits of recycling programs. htmlRecycling and Reusing Landscape Waste Cost Calculator: This Cost Calculator is designed tohelp landscaping companies and landscape managers estimate the cost savings associated withrecycling and reusing hardscapes and green waste. Green waste includes yard trimmings,leaves, plants, grass and other organic waste. The specific hardscape materials addressed in thistool include: lumber, brick, and concrete and asphalt. The Cost Calculator demonstrates thatrecycling and reusing hardscapes and landscape waste can offer significant savings comparedto disposal, depending on a facility's material needs and proximity to recycling r/greenscapes/tools/index.htmResource Conserving Landscaping Cost CalculatorThe Excel Resource Conserving Landscaping Cost Calculator compares the cost of convertingconventional landscapes to landscapes that require less irrigation and produce less waste byreplacing trees, turf, shrubs, and flowers that require more irrigation and grow faster withvarieties that require less irrigation and grow slower. To use the calculator, you will need to fillout a short questionnaire about your current landscape and the planned retrofit. The calculatorwill return all the initial and annual costs associated with both the current landscape and theplanned retrofit. In addition, you have the option of inputting your own cost information if youhave it. The calculator demonstrates that converting to a water saving landscape is often costcompetitive due to savings on water bills and landscaping maintenance, and provides manyenvironmental greenscapes/tools/index.htmDecking Cost CalculatorThe Excel Decking Cost Calculator compares the cost of building a new deck withenvironmentally preferable recycled plastic and recycled wood/plastic composite lumber withthe cost of building a conventional virgin wood deck. Simply enter the square footage of thedeck you are planning to build and the calculator will display high and low estimates for all ofthe initial, annual and life span costs of the four most common decking materials. In addition,you have the option of inputting your own cost information if you have it. The calculatordemonstrates that environmentally preferable decking options are very cost competitive for allproject sizes. es/tools/index.htmwww.epa.gov/care6