Closest equivalent
ح
pharyngeal h, may be approximated as a whispered hat
خ
Similar to the final sound in the word "loch" as pronounced by the Scottish
Similar to the first sound of the Spanish "Juan"
ص
can be approximated with sauce, but with the throat constricted
ض
can be approximated with dawn, but with the throat constricted
ط
can be approximated with tie, but with the throat constricted
ظ
can be approximated with “the”, but with the throat constricted
ع
cannot be approximated using words from European languages
غ
similar to the French r
ق
similar to caught, but pronounced further back in the mouth
.
Pronunciation via “Arabic Alphabet” article @ wikipedia