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Table 11 Single time-point concentration of the leached heavy metal according to NSF/ANSI 61-2007a, the drinking water regulatory level criteria (MCL/MAC) and the single-product allowable concentration (SPAC) (NSF International standard/American National Standard, NSF/ANSI 61- 2007a 2007).

From: Heavy Metal Leaching, CO2 Uptake and Mechanical Characteristics of Carbonated Porous Concrete with Alkali-Activated Slag and Bottom Ash

(mg/L)

Cr

Cu

As

Pb

Cd

Hg

PC2_C0

0.003747

0.003361

0.00074

0.00008

2E−0.6

0.00008

NS2_C0

0.000168

0.004682

0.00041

3E–06

NDa

0.00024

SS2_C0

0.000248

0.002800

0.00066

6E–06

4E−06

0.00009

PC2_C10

0.00011

0.05289

0.00041

0.00015

0.00001

0.00002

NS2_C10

0.00011

0.00681

0.00088

0.00004

7E−06

0.00018

SS2_C10

0.00005

0.01154

0.00049

0.00002

0.00001

ND

MCL/MAC

0.1

1.3

0.01

0.015

0.005

0.002

SPAC

0.01

0.13

0.001

0.0015

0.0005

0.0002

  1. aND: Non detected.