T HE WII)ESPREAI) occurrence of anemia is well documented. This disorder has been observed frequently in both representative populations and categorical subgroups, in technologically advanced and in developing regions. However, little iniformation is available concerning either t,he prevalence or the familial concentration of anemia that reasonably might be expected in special risk segments of large cities.Brooklyn is a heterogeneous urban comnmunity in which knowledge concerning the frequency and distribution of anemia could contribute to improved health services for residcents. To date only three limited studies have been described, each sug,gest,ing a serious prevalence of low lhemogolobin levels in selected subpopulatioins. Amilonig 2,729 nonipregnant patients observedl at a healtli department nutrition clinic over a 5-year period, lemogrlobin readings of less tlhan 12.5 gins. per 100 ml. were recorded for more than a tlhird; of the 1,729 patients whlo were unider 20 years of agre, 43 percent lha(l rea.ding,s below this level and 2.6 percent lhad readings of less tlhani 10.0 gins. Among 560 pregnant, womneln, 38 percent lhad lev-els under 10.0 gins. (1. 2). I-laughton. (3) reported hemoglobin concenDr. Hillman is with the department of environmental medicine and community health,