By Adrian Florido
Fronteras Desk

SAN DIEGO — American companies have sent more spent lead batteries for recycling to Mexico in recent years, according to a draft report by the Commission for Environmental Cooperation, the watchdog group created by the U.S., Mexico and Canada to respond to environmental concerns stemming from North American free trade.

That trend may be attributed to several factors, including more stringent U.S. environmental rules for lead battery recycling, the proximity of lead recycling facilities south of the border, and lower labor costs in Mexico, though the CEC said more data is needed to determine the exact reasons.

Exports to Mexico grew from 130 million pounds in 2004 to 750 million pounds last year, according to the report, which recommends that Mexico bring its environmental regulations up to more stringent standards.

The report was overseen…

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