DETECTION SYSTEM COMPRISING INEXPENSIVE PRINTED SENSOR ARRAYS FOR HYDROGEN GAS EMISSION MONITORING AND REPORTING (DECIPHER) THE PRIMARY GOAL OF THIS PROJECT IS TO DEVELOP A GAS DETECTION SYSTEM COMPRISING A DISTRIBUTED NETWORK OF LOW-COST SENSOR ARRAYS PRINTED WITH FUNCTIONALIZED CARBON NANOTUBES (CNTS) AND A ROBUST ANALYTICAL PLATFORM FOR MONITORING HYDROGEN GAS (H2) EMISSION IN OUTDOOR APPLICATIONS. THE DETECTION SYSTEM IS AIMED TO HAVE 5 ± 0.5 PPB SENSITIVITY WITH A FAST RESPONSE (<30 S) AND RECOVERY (<60 S) TIME, LONG LIFE (>10 YEARS) AND WILL QUANTIFY H2 CONCENTRATION WITH HIGH ACCURA-CY. THE PROJECT WILL BE EXECUTED IN THREE PHASES, EACH HAVING A 12-MONTH BUDGET PERIOD. BUDGET PERIOD 1 (BP1) WILL DELIVER A SENSOR ARRAY WITH <15 PPB SENSITIVITY AND A LOW-POWER SENSOR DE-VICE. BUDGET PERIOD 2 (BP2) WILL FOCUS ON DEVELOPMENT OF ANALYTICAL MODELS AND IMPROVEMENT OF SENSOR PERFORMANCE, FOLLOWED BY FIELD TEST 1. IN BUDGET PERIOD 3 (BP3), ANALYTICAL MODELS WILL BE FURTHER TRAINED WITH FIELD TEST DATA, AND FINALLY DEMONSTRATE THE CAPABILITIES OF THE DETECTION SYSTEM IN FIELD TEST 2. BP3 WILL CLOSE WITH A TECHNOECONOMIC ANALYSIS OF DECIPHER PROVIDING A PATHWAY FOR ADVANCING THE TECHNOLOGY FOR COMMERCIAL DEPLOYMENT.