How many Bacteria Live in Your Household Dust?

December 20, 2015 11:43 am0 commentsViews: 108

Do you know there are a lot of unknowns living with you in your room? Surprised? Yes this is true, a newly conducted study finds out that there are thousands of types of fungi and bacteria present in a house dust.


Bacteria in Dust

Bacteria in Dust

Researchers analyzed the dust from around 1200 houses of the United States; and found that on average there are about 2000 types of fungi and more than 5000 types of bacteria species present in each home’s dust.


“Every day, we are surrounded by a vast array of organisms in our homes, most of which we can’t see”, Noah Fierer (study co-author) an associate professor in department of ecology and evolutionary biology at the University of Colorado at Boulder, said in the university news release.

He also added that, “We live in a microbial zoo, and this study was an attempt to catalog that diversity,”

“Geography is the best predictor of fungi in your home. The reason is that most fungi blow in from outdoors via soil and leaves”, said Fierer.

For example, a home in the upper Midwest has the different number and type of fungi than the one in the Southeast.

After the analysis, the researchers were able to guess which house had the pets like dogs and cats etc. Even they were able to predict the gender ratio of people living there. Homes with both males and females had the different bacterial number & type as compared to house with only males.

This study has published in the journal Proceedings of the Royal Society B.

“One of the key takeaways is that if you want to change what you breathe inside your house, you would either have to move very far away or change the people and the pets you live with,” lead author Albert Barbaran, a researcher at the University of Colorado at Boulder’s department of ecology and evolutionary biology, said in a news release.

According to researchers, findings and results of this study can be very useful in allergy and forensic investigations.

Source: University of Colorado at Boulder, news release, 2015


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