The last employer where you

  were exposed to a hazard is

  responsible for the entire injury,

  even if many years of damaging

  exposure were suffered through

  different employment.

  "Section 1(d) of the Act provides:

   'The employer liable for the

   compensation in this Act provided shall

   be the employer in whose employment

   the employee was last exposed to the

   hazard of the occupational disease

   claimed upon regardless of the length

   of time of such last exposure ***.' 820

   ILCS 310/1(d) (West 2000).

   Section 1(d) taps the employer with

   whom the employee was last exposed

   to the hazard for the entire compensation

   provided by the Act. That is, the focus is

   on the employer on the date of the last

   exposure-in a sense, the 'last employer.'"
 

 Hamilton v. Indus. Comm'n (Am. Nat'l Can

 Co.), 203 Ill. 2d 250, 255 (2003)