Descargas al agua de grasas y aceites	Descargas al agua de sólidos suspendidos totales	Descargas al agua de nitrógeno total	Descargas al agua de otros contaminantes
Subsidiaria Pemex	Año
Pemex Exploración (PEP)	1999	137.00	255.00	57.00	176.00
	2000	84.00	296.00	33.00	71.00
	2001	53.00	260.00	5.00	0.00
	2002	55.00	228.00	1.00	0.00
	2003	38.00	224.00	1.00	0.00
	2004	41.00	229.00	0.00	0.00
	2005	81.16	319.68	0.48	0.12
	2006	100.87	305.23	0.56	0.15
	2007	60.35	329.04	0.14	0.24
	2008	41.00	222.00	0.00	0.00
	2009	218.00	763.00	0.00	0.00
	2010	48.00	122.00	1.00	0.00
	2011	179.00	450.00	1.00	0.22
	2012	344.00	1,261.00	1.00	0.00
	2013	571.00	1,750.00	0.00	0.00
	2014	397.15	1,166.38	0.05	0.01
	2015	431.45	1,307.65	0.15	0.06
Pemex Refinación (PR)	1999	1,082.00	1,625.00	461.00	44.00
	2000	946.00	1,234.00	512.00	18.00
	2001	651.00	1,274.00	689.00	44.00
	2002	228.00	951.00	450.00	34.00
	2003	156.00	600.00	386.00	30.00
	2004	153.00	646.00	283.00	43.00
	2005	147.23	669.29	232.63	33.99
	2006	145.95	686.53	226.84	31.63
	2007	213.50	884.50	285.50	30.80
	2008	166.00	813.00	263.00	35.00
	2009	138.00	896.00	431.00	17.00
	2010	146.00	1,017.00	558.00	36.00
	2011	158.00	925.00	481.00	41.00
	2012	192.00	962.00	417.00	30.00
	2013	246.00	1,022.00	425.00	14.00
	2014	241.53	1,035.60	394.21	23.87
	2015	331.82	1,024.13	353.62	21.02
Pemex Gas y Petroquímica Básica (PGPB)	1999	34.00	160.00	43.00	12.00
	2000	50.00	322.00	82.00	4.00
	2001	53.00	220.00	112.00	7.00
	2002	55.00	233.00	87.00	6.00
	2003	50.00	198.00	74.00	5.00
	2004	44.00	200.00	76.00	5.00
	2005	27.54	126.36	52.01	3.41
	2006	49.34	174.86	72.32	6.18
	2007	96.40	214.10	57.60	8.30
	2008	80.00	230.00	54.00	5.00
	2009	95.00	190.00	50.00	7.00
	2010	92.00	226.00	53.00	29.00
	2011	33.00	148.00	61.00	46.00
	2012	27.00	145.00	65.00	55.00
	2013	66.00	121.00	49.00	35.00
	2014	54.58	115.16	77.38	52.00
	2015	29.71	100.89	27.58	12.68
Pemex Petroquímica (PPQ)	1999	175.00	1,760.00	179.00	17.00
	2000	140.00	1,417.00	113.00	16.00
	2001	156.00	691.00	7.00	3.00
	2002	85.00	622.00	7.00	2.00
	2003	59.00	819.00	8.00	5.00
	2004	104.00	359.00	9.00	4.00
	2005	133.45	740.95	32.25	13.50
	2006	55.45	463.67	34.17	21.18
	2007	75.90	414.00	27.49	14.73
	2008	81.00	459.00	24.00	14.00
	2009	79.00	539.00	27.00	19.00
	2010	54.00	577.00	71.00	23.00
	2011	81.37	418.49	36.90	14.50
	2012	92.00	424.00	24.00	12.00
	2013	98.00	546.00	21.00	10.00
	2014	77.37	405.48	25.04	13.54
	2015	162.24	381.20	43.43	20.35
Total	1999	1,428.00	3,800.00	740.00	249.00
	2000	1,220.00	3,269.00	740.00	109.00
	2001	913.00	2,445.00	813.00	54.00
	2002	423.00	2,034.00	545.00	42.00
	2003	303.00	1,841.00	469.00	40.00
	2004	342.00	1,434.00	368.00	52.00
	2005	389.38	1,856.28	317.37	51.02
	2006	351.61	1,630.29	333.89	59.14
	2007	446.15	1,841.64	370.74	54.07
	2008	367.00	1,723.00	342.00	54.00
	2009	530.00	2,388.00	508.00	43.00
	2010	340.00	1,942.00	683.00	88.00
	2011	451.37	1,941.49	579.90	101.72
	2012	655.00	2,792.00	507.00	97.00
	2013	981.00	3,439.00	495.00	59.00
	2014	770.62	2,722.62	496.69	89.43
	2015	955.23	2,813.87	424.78	54.10