The highest CO2 concentration that should be used for an alarm set point is 1,000 ppm. However, this set point can and should be lowered in order to be customized for the specific building ventilation system parameters.
In practice, it is generally not appropriate to use CO2 sensors to monitor indoor air quality in buildings without densely occupied spaces, since the sensors are designed for optimal use in those types of spaces. CO2 sensors are not substitutes for required equipment used to continuously monitor outdoor airflow rates, but rather are supplementary monitors that can be useful in buildings containing densely occupied spaces (see Case 2 below).
If possible, track individual waste stream components that are diverted from the landfill and isolate these values for the purposes of documentation. Ask your waste hauler about providing itemized hauler reports so that you can consistently track the separate waste streams from your building’s ongoing consumables waste, such as paper, cardboard, and glass.
In multi-tenant buildings, investigate the individual tenants’ waste-diversion needs and communicate the building’s overall goals for waste diversion. Effective programs for managing diversion of shredded office paper will be especially important.
In a parking-garage, look to the location of disabled parking spaces for guidance on what is “preferred.” This may be on the lowest floor, or it may be closest to stairwells or elevators spread out over multiple floors.
Consider the preference of building occupants so as not to dedicate resources to programs or infrastructure that will remain idle and not serve their intended audience. Is the organizational culture such that employees would appreciate such amenities? Depending on the building type, building occupants can be surveyed to assess the demand for amenities relating to low-emitting and fuel-efficient vehicles. If you are planning on providing alternative-fuel refueling stations, assess what kind of fuel is preferred.
