The NO2, nitrate and ammonia sampling in aerosols and rainfall was car
ried out at five stations located along the Cuban Island from 1986 to
1991. The sampling and chemical analysis were made mainly on the basis
of methodologies recommended by WMO for above mentioned compounds at
regional level. The total deposition of these compounds varies from 0.
706 to 3.317 g m(-2) yr(-1) The wet deposition is about of 60%, so tha
t the dry one is 40%. The amount of both depositions depends on our tr
opical rainy climate features. For some of these compounds the trend i
s increasing.