A passenger railroad locomotive has a prime mover engine of 2992 hp full capacity, and it has a NOx emission factor of 9.7 g/(hp-hr). The locomotive operates a train that travels 162 miles over a period of 3 hours and 19 minutes, carries 131 passengers, and operates with an average engine load of 0.519 (ratio of actual to maximum) of full engine capacity. What is the average emission factor of NOx per passenger-mile, in units of grams of NOx/passenger-mile? Report 2 significant figures and report unit as g/passenger-mile