PCBs get into wild salmon from the other fish they eat and into farmed salmon from their feed (which contains many of these same fish). The FDA has set the safe upper limit for PCBs at 2000 parts per billion (ppb). Farmed salmon averages 27 ppb, well below that limit.
To maximize the shelf life of cooked chicken for safety and quality, refrigerate the chicken in shallow airtight containers or wrap tightly with heavy-duty aluminum foil or plastic wrap. Properly stored, cooked chicken will last for 3 to 4 days in the refrigerator. To further extend the shelf life of cooked chicken, freeze it; freeze in covered airtight containers or heavy-duty freezer bags, or wrap tightly with heavy-duty aluminum foil or freezer wrap.
When asked, how long does chicken keep in the refrigerator, the best answer is, 'It depends.' There are several factors to consider including: Is the chicken raw or cooked? How fresh was it when you placed it in the refrigerator? Is the refrigerator maintaining a temperature of 40 or colder? Was raw chicken kept cold when transported from the store? How long cooked chicken will keep is different than for uncooked chicken. As a general rule, raw chicken is very perishable and will keep in the refrigerator for only 1 to 2 days. When the question is how long does cooked chicken keep, the general rule is 3 to 4 days in the refrigerator. The USDA Food Safety and Inspection Service (FSIS) has a lot of information on its website to help insure food safety and most general all-purpose cookbooks include tips on buying, storing, and cooking chicken and poultry.