Pollution Raises Risk of Heart Attack, Says Study

Heart-AttackA team of researchers from the Rice University, Houston, has published its latest study in the American Heart Association journal Circulation. The study has claimed that a person's exposure to pollution links him to out-of-hospital cardiac arrests (OHCA).

Fine particulate matter was found harmful for people's health, especially for the heart. And it has been told that the risk of OCHA increased with an increase in the particulate matter daily by six micrograms over two days. Fine particulate matter is the airborne particles lesser than 2.5 micrograms.

People with existing health conditions, not cardiac-related specifically, were at a 4.6% higher risk than their counterparts.

Statisticians Katherine Ensor along with Loren Raun examined data from extensive network of air-quality monitors of Houston. Also, above 11,000 concurrent out-of-hospital cardiac arrests (OHCA) that were registered by Houston Emergency Medical Services (EMS) were looked at with an aim to save lives.

It was found that sulphur dioxide, nitrogen dioxide or carbon monoxide did not impact the OHCA occurrence. In above 90% of the cases, patients had died. The cases were reported in hot summer months.

"Blanket warnings about air quality may not be good enough. We want to enhance our understanding of the health cost of pollution - and celebrate its continuing reduction", affirmed Ensor.