Plummeting volumes of imports from Asia sent cargo traffic at San Francisco International Airport plunging 36 per cent in December, giving the major trans-Pacific gateway a 14.4 per cent decline in overall freight business in 2008. International imports fell 43 per cent at San Francisco in December from the same month a year earlier, a clear sign of the faltering production from factories in China and exports from the region. Los Angeles International Airport, the largest trans-Pacific air cargo gateway in North America, reported a 24.3 per cent decline in freight traffic in December. Overall cargo traffic at Los Angeles International fell 11.9 per cent in 2008.