The good news, Perera said, is that levels of PAHs are declining in New York City.

佩雷拉说好消息是纽约市的多环芳烃含量正在减少。

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"We're confirming a finding in a different population, a different setting, even a different gradient of exposure, and that reinforces the initial finding in New York," Perera said.

“我们正在证实一项发现，在不同的人口，不同的环境，甚至不同程度的暴露强化了纽约的最初发现，”佩雷拉说。

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“We're confirming a finding in a different population, a different setting, even a different gradient of exposure, and that reinforces the initial finding in New York,” Perera said.

“我们正在证实一项发现，在不同的人口，不同的环境，甚至不同程度的暴露强化了纽约的最初发现,”佩雷拉说。

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“We're confirming a finding in a different population, a different setting, even a different gradient of exposure, and that reinforces the initial finding in New York,” Perera said.

“我们正在证实一项发现，在不同的人口，不同的环境，甚至不同程度的暴露强化了纽约的最初发现,”佩雷拉说。

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