Current exposure sources include lead paint, folk remedies, glazed pottery, soil and drinking water in some urban areas with older housing.

目前仍然存在的暴露源包括：铅涂料、民间偏方、陶器、郊区的土壤和饮用水。

youdao

The strong household clustering of MTI suggests that family sources of exposure are important.

结核杆菌感染的强家庭聚集性表明家庭暴露源很重要。

youdao

The investigation will explore possible sources of exposure and look for signs of illness in family members, other close contacts, and the general community.

调查将探索可能的暴露源和寻找家庭成员、其他密切接触者和社区中的疾病迹象。

youdao

"We also carefully consider the sources of exposure of populations to radiofrequency electromagnetic fields, the nature of these fields as they come from various devices, including wireless phones, and we look carefully at the physical phenomenon by which exposure to such fields may perturb biological systems and lead to cancers."

VOA: special.2011.06.06

So while cosmic rays might ensure you get cancer and die before reaching 90 years of age, increasing exposure from other sources lowers the age with each exposure.

FORBES: What Are Millisieverts? And Should Tokyo Be Scared Of Them?

The researchers admit that they had no way of measuring other potential sources of exposure outside the home.

BBC: Passive smoke greater in the home

However, industry sources believe exposure the ETN was holding to corn, wheat, soybeans and sugar futures was nearing limits that might attract the attention of regulators at the Commodity Futures Trading Commission.

FORBES: Can We Chill Out With the Leveraged Food Bets?