More than 6 percent of imported goods inspected by China's quality authorities failed to meet standards last year, the General Administration of Quality Supervision, Inspection and Quarantine said on Monday.

Last year, the quality watchdog conducted inspection and quarantine actions on 4.5 million batches of imported goods valued at $952 billion.

It found that 6.19 percent of all the batches were substandard.

It also inspected 13.9 million batches of goods to be exported. About 0.12 percent fell short of standards, the same level compared with the previous year.

Inspection and quarantine authorities also stopped 4,331 kinds of harmful pests on imported agricultural products from entering China, including 284 types of especially dangerous pests.

Inspections were also conducted on 439 million people exiting or entering borders last year, with 2,639 people found to carry infectious diseases.