The Philippines consists of 7,107 islands, of which only 2,000 are inhabited. Only about 500 of the islands are larger than a square kilometer and 2,500 of them are not even named. The total area of the Philippines is 299,404 square kilometers. The highest mountain is Mt. Apo, near Davao in Mindanao, at 2,953 metres. The islands of the Philippines can be conveniently divided into three groups. First, there is Luzon, the largest and northernmost island and the site of the capital, Manila.
Sorry to split hairs on this, but given that the typical half-life of nicotine is 2 hours, and that most assays have a limit of detection of 0.1 to 0.5 ng/ml, following the logic I described above, all the nicotine has gone from the blood stream within 24 hours. i.e. when you take a blood sample from a smoker 24 hours after their last smoke, they will most likely have a blood nicotine level <0.5 ng/ml. (i.e.>95% gone by 24 hrs).
During cigarette smoking, high blood nicotine levels rise within 2 to 3 minutes of initiation and can be maintained for 10 minutes. Nicotine is quickly distributed throughout the body, penetrating the brain, crossing the placental barrier, and appearing in all body fluids, including breast milk.