Wolman served an extensive career in sanitary engineering, working in both environmental and public health services as well as in academics.

His efforts there helped develop the plan for Baltimore's water supply so thoroughly and effectively that it remains well-provided for growth through the 21st century.

He was appointed Professor Emeritus in 1962, but had no desire to retire from professional life, so he continued his teaching and research in addition to serving as a consultant to the many governments and municipalities that requested his advice and assistance.

Wolman and Enslow began their experiment by describing their observations on the rate of chlorine absorption in different water samples that varied in bacteria, color, turbidity, oxidizable compounds, and other purity factors.

He defined the metabolic requirements of a city as all materials and commodities needed to sustain its population, including all processes related to the proper removal and disposal of waste products produced in daily life.

However, he pointed out that many major US cities share three metabolic problems: (1) lack of an adequate water supply, (2) ineffective disposal of sewage, and (3) poor control of air pollution.

He concluded the article on a somewhat optimistic note, mentioning that the future of water sanitation, sewage disposal, and eliminating air pollutants is hopeful.

However, in order to reach that future, Wolman called for immediate action and planning of policies and programs needed to combat the three metabolic problems.

Since the publication of this paper, there have been many studies performed to develop viable solutions to tackle the water shortages, waste disposal, and air pollution issues proposed by Wolman.

For his efforts in public health practices and engineering skills on a local and global level, Wolman was granted multiple awards.

In May 1966, the Johns Hopkins University named a newly acquired dormitory Wolman Hall, which continues to house first year students.

Today, the Abel Wolman Municipal Building is where citizens of Baltimore come to pay their property taxes, parking fines and metered water bills.