System and method for monitoring air quality while cooling an outdoor electronic display assembly

A digital signage unit for generating air quality related alerts, said digital signage unit comprising:

• a housing;
• an intake located at said housing;
• an exhaust located at said housing;
• a directly backlit liquid crystal electronic display located within the housing for displaying content, including advertising images and/or wayfinding;
• an open loop airflow pathway for ambient air extending within said housing between said intake and said exhaust, where an entirety of said open loop airflow pathway is directly open to an ambient environment;
• an air quality monitoring device located along said open loop airflow pathway, said air quality monitoring device comprising sensors, including air composition sensors;
• a network connectivity device;
• and
• one or more non-transitory electronic storage devices comprising software instructions, which when executed, configure one or more processors to:
• cause the content to be displayed at the electronic display;
• receive air characteristic measurement data from said sensors, said air characteristic measurement data indicating a concentration of each of a plurality of compounds comprising:
• sulfur dioxide, trioxygen, hydrogen sulfide, nitrogen dioxide, and carbon monoxide, radioactive isotopes, compounds known to be found in explosives, compounds known to be found in chemical weapons, and compounds known to be found in biological weapons;
• and
• where the concentration of any one of the compounds exceeds a respective, compound-specific predetermined threshold, cause the content displayed at the electronic display to be altered to include displaying an alert and cause a same or different alert to be transmitted to one or more remote electronic devices by way of the network connectivity device.

A digital signage unit for generating air quality related alerts, said digital signage unit comprising:

• an electronic display for displaying content, including advertising content;
• an open loop airflow pathway for ambient air;
• an air quality monitoring device located along said open loop airflow pathway, said air quality monitoring device comprising air composition sensors;
• a housing for said electronic display and said air quality monitoring device such that said open loop airflow pathway extends within said housing, and wherein said open loop airflow pathway is directly open, along an entire length thereof, to an ambient environment;
• and
• one or more non-transitory electronic storage devices comprising software instructions, which when executed, configure one or more processors to:
• receive air characteristic measurement data from said air composition sensors, said air characteristic measurement data indicating a concentration of each of a plurality of compounds;
• and
• where the concentration of any one of the compounds exceeds a respective predetermined threshold, cause the content displayed at the electronic display to be modified to include displaying an alert.