title: Marine pollution.
abstract: In the editorial, "Marine pollution" (8 January 1971, page 21), the value given for the concentration of mercury found in tuna (paragraph 2, line 10, 0.5 x 10-6 part per billion) is incorrect. The correct value is 500 parts per billion.
authors.forename: P H
authors.initials: PH
authors.lastname: Abelson