1026-8774

S1026-87742018000100001

10.22201/cgeo.20072902e.2018.1.536

Nicaragua

Mexico

00 00 2018

35 1 1 17

2007 180

271-81

2006 50

809-19

2005 Segunda

2009 24

162-71

2003 71

387-93

ASTM (American Standards Testing and Materials) 1985

ASTM (American Standards Testing and Materials) 2001

2000

351-403

1991 55

965-78

2006 422

377-415

CCME (Canadian Council of Ministers of the Environment) 2008

COREMI (Consejo de Recursos Minerales) 1999

2013 65 3 3

427-46

2007 22 2 2

415-35

2017 172

120-32

2003 18

1197-213

2010 60 2 2

395-407

1987 21

388-96

2003 18

1267-78

2007 22

2486-508

1998 32

2122-34

2008 94

93-9

2007 24 2 2

170-84

2000

1463-75

2015 57

125-39

2009 24

1224-37

2012 113

3-12

2011 7

375-80

INEGI (Instituto Nacional de Estadística Geografía) 1999

1998 27

367-401

2011 7 6 6

381-6

2013 262

1187-95

2005 20

1687-703

1997 198

13-31

2009 24 12 12

2212-21

1997 98 1 1

7-13

1994 23

156-65

2005 20

639-59

2009 77

140-7

2011 7 6 6

393-8

1999 6A

133-60

1999 6B

373-432

2017 56 3 3

305-15

2006 23 1 1

54-74

2012 28 1 1

49-59

2008 406

287-97

2007 22

109-27

2008 24

43-54

2011 60

191-203

1995 52

5-23

2009 24

697-714

1991

SEMARNAT (Secretaria de Medio Ambiente y Recursos Naturales)

2003

SEMARNAT (Secretaria de Medio Ambiente y Recursos Naturales)

2005

2011 189 3 3

624-39

2007 17

25-45

SMN (Servicio Meteorológico Nacional) 2010

2005 44

49-64

2006 28

243-55

USEPA (United States Environmental Protection Agency) 1980

USEPA (United States Environmental Protection Agency) 1986

USEPA (United States Environmental Protection Agency)

1995

USEPA (United States Environmental Protection Agency) 2003

USEPA (United States Environmental Protection Agency)

2004