Tender For corrigendum : supply & installation of continuous ambient airqualitymonitoring system (caaqms), continuous marine water qualitymonitoring stations (cmwqms), online continuous effluent monitoring system(ocems) at stp inlet & outlet, online sound level meter with dg set noise level and providing led display board and central server along with 10 years camc (comprehensive annual maintenance contract) after 6 months trail run in port area.