NAPL Temporal Series

• Ottawa River (1950, 1960, 1964, 1973, 1994, 2001)
• Salish (1950, 1959, 1967, 1972, 1978, 1982)
• Victoria (1932, 1950)
• Regina (1947, 1967)
• Markham (1960, 1974)
• Halifax (1947, 1977)
• Tuktoyaktuk (1947, 1950, 1966, 1968, 1972, 1974, 1978, 1980, 1983, 1985, 1987, 1993, 1996, 2004)
• Ring of Fire, Ontario (1954, 1973, 1974, 1975, 1976)