Direct extractive systems and methods for monitoring emissions

A portable emission monitoring system comprising:

• a first and second sample port of one or more gas detectors;
• a first tubing that connects the first sample port to a first tank to be monitored for a first gas;
• a second tubing that connects the second sample port to a second tank to be monitored for a second gas;
• one or more pumps connected to the first tubing and the second tubing wherein the one or more pumps draw gas from the first tank and the second tank to the first sample port and the second sample port respectively;
• wherein the one or more gas detectors measures the concentration of drawn gas from the first tank in the first sample port and wherein the one or more gas detectors measures the concentration of drawn gas from the second tank in the second sample port;
• a portable skid for mounting the one or more gas detectors and the one or more pumps;
• and (1) a first adapter attached to an end of the first tubing wherein the first adapter is configured to be attached to a vapor ring on a hatch of the first tank and (2) a second adapter attached to an end of the second tubing wherein the second adapter is configured to be attached to a vapor ring on a hatch of the second tank;
• wherein the portable emission monitoring system monitors emissions from the first and the second tank.