Table A1 Comparing NATA 2011 estimated annual concentrations and AMA observed annual concentrations by Gulf state

From: Determinants of environmental styrene exposure in Gulf coast residents

State

Number of monitors

Average difference (µg/m3) (Monitors—NATA)

Average ratio (Monitors/NATA)

Alabama

3

0.67

27.3

Florida

9

0.23

11.9

Louisiana

4

0.07

1.7

Mississippia

2

0.08

4.4

Texas

19

0.07

1.3

  1. aNo monitoring data available in 2011; the only two active monitors from 2010 were used instead