Systems and methods for environment sensing

A sensor system comprising:

• a sensor node having a sensor that includes a sensing material configured to be located in a geographic area being monitored by the sensor node;
• and
• a remote system having a communication circuit and a controller circuit, the communication circuit configured to be wirelessly communicatively coupled to the sensor node, the controller circuit electrically coupled to the communication circuit, the controller circuit configured to:
• receive an impedance response of the sensing material while the sensing material is located in the geographic area;
• and
• detecting a presence of an analyte of interest in the geographic area being monitored by analyzing the impedance response of the sensing material at frequencies that provide a linear response of the sensing material to the analyte of interest and that at least partially reject one or more effects of interferences.

A method comprising:

• acquiring one or more ambient parameters of an ambient environment with which a sensing material of a sensor in a sensor node is in contact;
• obtaining an impedance response of the sensing material of the sensor;
• analyzing the impedance response of the sensing material at frequencies that one or more of:
• provide a linear response of the sensing material to an analyte of interest, or
• at least partially reject one or more effects of interferences.