Engman Public Natatorium Engman Public Natatorium The Engman Public Natatorium was a public swimming pool that operated in South Bend, Indiana between 1922 and 1978. Sources describe it as being the largest indoor swimming pool in the state of Indiana when it first opened in 1922. The pool has a history of racial exclusion, barring African Americans completely between 1922 and 1936, then segregating against them (by day) between 1936 and 1950. In 2010, after sitting vacant since 1978, the building re-opened as the home of the Indiana University South Bend Civil Rights Heritage Center. As of 2016, the Center continues to operate
Indoor bioaerosol devices to air ventilation system to inlet filtered outdoor air into indoor environment; 4) reducing/removing contaminant sources (i.e., indoor organic waste). As in the U.S., due to the increase in tuberculosis in the mid-1980s, indoor air treatment has developed substantially during the past two decades. Current or developing indoor air purification technologies include filtration, aerosol ultraviolet irradiation, electrostatic precipitation, unipolar ion emission, and photocatalytic oxidation. Indoor bioaerosol Indoor bioaerosol is bioaerosol in an indoor environment. Bioaerosols are natural or artificial particles of biological (microbial, plant, or animal) origin suspended in the air. These particles are also referred to as organic