APÉNDICE

Actividad de las cadenas radiactivas en cada muestra

Tabla 12.1: Actividad de las cadenas naturales (padres) Bq/kg

No.	$\ ^{40}$K	$\ ^{235}$U	$\ ^{238}$U	$\ ^{228}$Ac	$\ ^{137}$Cs
M1	$497 \pm 32$	$3.56 \pm 0.63$	$77.3 \pm 13.6$	$18.9 \pm 3.5$	$0.90 \pm 0.34$
M2	$446 \pm 27$	$3.02 \pm 0.62$	$65.5 \pm 13.4$	$19.5 \pm 3.5$	$2.28 \pm 0.38$
M3	$496 \pm 31$	$2.45 \pm 0.50$	$53.3 \pm 10.8$	$11.4 \pm 2.2$	$9.37 \pm 0.73$
M4	$493 \pm 29$	$2.47 \pm 0.46$	$53.7 \pm 10.1$	$15.4 \pm 2.8$	$11.42 \pm 0.82$
M5	$461 \pm 28$	$1.13 \pm 0.33$	$24.6 \pm 7.1$	$7.1 \pm 1.9$	$9.07 \pm 0.76$
M6	$380 \pm 26$	$0.98 \pm 0.35$	$21.2 \pm 7.7$	$6.5 \pm 1.7$	$7.68 \pm 0.70$
M7	$256 \pm 20$	$1.61 \pm 0.46$	$35.1 \pm 10.0$	$23.0 \pm 4.3$	$0.63 \pm 0.28$
M8	$419 \pm 25$	$1.77 \pm 0.37$	$38.4 \pm 8.1$	$12.0 \pm 2.2$	$2.91 \pm 0.35$
M9	$365 \pm 24$	$1.75 \pm 0.36$	$37.9 \pm 7.7$	$15.9 \pm 2.8$	$3.28 \pm 0.44$
M10	$291 \pm 22$	$2.47 \pm 0.49$	$53.6 \pm 10.7$	$8.4 \pm 2.0$	$7.45 \pm 0.64$
M11	$197 \pm 18$	$3.72 \pm 0.60$	$80.8 \pm 13.0$	$29.7 \pm 4.6$	$1.82 \pm 0.33$
M12	$237 \pm 20$	$3.72 \pm 0.66$	$80.8 \pm 14.4$	$21.4 \pm 3.9$	$0.57 \pm 0.39$
M13	$287 \pm 22$	$2.73 \pm 0.52$	$59.3 \pm 11.3$	$17.8 \pm 3.1$	$6.58 \pm 0.59$
M14	$315 \pm 23$	$1.95 \pm 0.42$	$42.3 \pm 9.1$	$9.7 \pm 2.1$	$4.82 \pm 0.48$
M15	$291 \pm 20$	$1.62 \pm 0.42$	$35.1 \pm 9.0$	$17.6 \pm 3.2$	$2.15 \pm 0.42$
M16	$217 \pm 18$	$4.76 \pm 0.66$	$103.4 \pm 14.3$	$36.7 \pm 5.5$	$1.79 \pm 0.35$
M17	$283 \pm 20$	$2.39 \pm 0.47$	$51.9 \pm 10.2$	$11.5 \pm 2.3$	$12.53 \pm 0.92$
M18	$365 \pm 22$	$1.26 \pm 0.33$	$27.3 \pm 7.2$	$9.9 \pm 2.0$	$4.82 \pm 0.50$
M19	$364 \pm 23$	$3.13 \pm 0.54$	$67.9 \pm 11.8$	$28.8 \pm 4.4$	$2.75 \pm 0.45$
M20	$273 \pm 19$	$2.19 \pm 0.42$	$47.5 \pm 9.1$	$16.1 \pm 3.1$	$1.81 \pm 0.30$
M21	$465 \pm 28$	$2.92 \pm 0.53$	$63.5 \pm 11.6$	$17.8 \pm 3.2$	$0.74 \pm 0.33$
M22	$462 \pm 30$	$4.15 \pm 0.55$	$90.1 \pm 12.0$	$16.3 \pm 3.1$	$0.20 \pm 0.09$
M23	$314 \pm 21$	$1.05 \pm 0.29$	$22.8 \pm 6.2$	$8.6 \pm 1.9$	$3.08 \pm 0.38$
M24	$375 \pm 26$	$0.33 \pm 0.12$	$7.2 \pm 2.6$	$7.2 \pm 2.0$	$0.36 \pm 0.12$
M25	$314 \pm 21$	$0.82 \pm 0.31$	$17.9 \pm 6.8$	$11.8 \pm 2.1$	$2.47 \pm 0.39$
M26	$440 \pm 26$	$1.44 \pm 0.36$	$31.3 \pm 7.9$	$11.5 \pm 2.4$	$2.71 \pm 0.40$
M27	$353 \pm 22$	$1.35 \pm 0.35$	$29.4 \pm 7.6$	$11.4 \pm 1.4$	$3.19 \pm 0.38$
M28	$372 \pm 25$	$1.06 \pm 0.30$	$22.9 \pm 6.5$	$8.4 \pm 2.0$	$3.17 \pm 0.40$
M29	$386 \pm 25$	$1.30 \pm 0.34$	$28.1 \pm 7.4$	$10.8 \pm 2.2$	$2.32 \pm 0.31$
M30	$288 \pm 20$	$0.79 \pm 0.26$	$17.3 \pm 5.8$	$8.0 \pm 1.7$	$2.29 \pm 0.32$
M31	$252 \pm 20$	$1.37 \pm 0.32$	$29.8 \pm 6.9$	$8.4 \pm 1.1$	$3.27 \pm 0.39$
M32	$355 \pm 24$	$1.35 \pm 0.32$	$29.3 \pm 7.0$	$10.1 \pm 2.2$	$3.18 \pm 0.42$
M33	$214 \pm 18$	$1.45 \pm 0.34$	$31.5 \pm 7.5$	$9.3 \pm 2.0$	$8.09 \pm 0.65$
M34	$261 \pm 18$	$2.52 \pm 0.44$	$54.7 \pm 9.6$	$16.9 \pm 5.1$	$8.99 \pm 0.73$
M35	$286 \pm 21$	$1.91 \pm 0.37$	$41.5 \pm 8.0$	$8.2 \pm 1.9$	$5.51 \pm 0.52$
M36	$295 \pm 20$	$1.02 \pm 0.28$	$22.2 \pm 6.1$	$6.8 \pm 1.5$	$1.31 \pm 0.26$
M37	$324 \pm 21$	$1.85 \pm 0.36$	$40.3 \pm 7.9$	$13.3 \pm 2.6$	$5.11 \pm 0.50$
M38	$354 \pm 24$	$1.74 \pm 0.38$	$37.8 \pm 8.2$	$12.1 \pm 2.5$	$4.20 \pm 0.52$
M39	$359 \pm 22$	$2.22 \pm 0.40$	$48.2 \pm 8.6$	$10.3 \pm 2.1$	$2.16 \pm 0.36$
M40	$301 \pm 21$	$3.06 \pm 0.57$	$66.6 \pm 12.4$	$33.0 \pm 5.0$	$4.79 \pm 0.50$
M41	$263 \pm 19$	$1.40 \pm 0.36$	$30.3 \pm 7.9$	$8.7 \pm 1.9$	$12.27 \pm 0.87$
M42	$275 \pm 20$	$2.89 \pm 0.51$	$62.7 \pm 11.0$	$19.9 \pm 3.3$	$2.06 \pm 0.35$
M43	$202 \pm 17$	$1.91 \pm 0.39$	$41.6 \pm 8.5$	$14.0 \pm 2.6$	$3.99 \pm 0.43$
M44	$180 \pm 16$	$1.70 \pm 0.34$	$36.9 \pm 7.4$	$8.1 \pm 1.8$	$4.18 \pm 0.42$
M45	$559 \pm 32$	$2.85 \pm 0.50$	$61.9 \pm 10.8$	$15.7 \pm 2.9$	$4.33 \pm 0.51$
M46	$320 \pm 21$	$2.19 \pm 0.40$	$47.6 \pm 8.8$	$15.9 \pm 2.8$	$3.87 \pm 0.44$
M47	$574 \pm 31$	$3.14 \pm 0.52$	$68.2 \pm 11.3$	$23.1 \pm 3.9$	$2.28 \pm 0.35$
M48	$221 \pm 16$	$1.94 \pm 0.37$	$42.1 \pm 7.9$	$9.8 \pm 2.0$	$5.97 \pm 0.55$
M49	$175 \pm 18$	$1.46 \pm 0.33$	$31.6 \pm 7.1$	$7.2 \pm 1.8$	$3.56 \pm 0.41$
M50	$195 \pm 19$	$3.00 \pm 0.50$	$65.2 \pm 10.8$	$20.1 \pm 3.4$	$1.52 \pm 0.29$
M51	$479 \pm 27$	$2.71 \pm 0.48$	$58.8 \pm 10.4$	$17.2 \pm 3.0$	$2.43 \pm 0.35$
M52	$192 \pm 15$	$3.08 \pm 0.52$	$66.8 \pm 11.3$	$19.4 \pm 3.3$	$1.78 \pm 0.29$
M53	$297 \pm 19$	$2.45 \pm 0.43$	$53.2 \pm 9.3$	$15.7 \pm 2.8$	$4.54 \pm 0.49$
M54	$313 \pm 23$	$3.64 \pm 0.54$	$79.1 \pm 11.7$	$28.4 \pm 4.5$	$2.62 \pm 0.35$
M55	$570 \pm 31$	$3.78 \pm 0.63$	$82.1 \pm 13.6$	$32.3 \pm 5.1$	$1.26 \pm 0.25$
M56	$425 \pm 26$	$1.79 \pm 0.38$	$39 \pm 8.2$	$15.1 \pm 2.7$	$1.56 \pm 0.28$
M57	$460 \pm 28$	$4.27 \pm 0.66$	$92.8 \pm 14.3$	$29.3 \pm 4.6$	$4.66 \pm 0.48$
M58	$455 \pm 30$	$2.21 \pm 0.42$	$48 \pm 9.0$	$14.3 \pm 2.7$	$2.95 \pm 0.38$
M59	$221 \pm 19$	$1.98 \pm 0.39$	$42.9 \pm 8.5$	$14.5 \pm 2.6$	$3.09 \pm 0.39$
M60	$252 \pm 18$	$1.93 \pm 0.35$	$41.9 \pm 7.6$	$10.6 \pm 2.2$	$2.49 \pm 0.33$

Tabla 12.2: Actividad de otros elementos Bq/kg

No.	$\ ^{214}$Pb	$\ ^{214}$Bi	$\ ^{226}$Ra	$\ ^{212}$Pb	$\ ^{208}$Tl
M1	$22 \pm 4$	$16.6 \pm 1.7$	$7.7 \pm 1$	$21.3 \pm 2.2$	$7.6 \pm 0.7$
M2	$11 \pm 3$	$17.8 \pm 1.9$	$8.2 \pm 1.1$	$23.1 \pm 2.5$	$9.1 \pm 0.8$
M3	$13 \pm 3$	$12.7 \pm 1.4$	$5.9 \pm 0.8$	$14.3 \pm 1.1$	$5 \pm 0.5$
M4	$13 \pm 3$	$11.6 \pm 1.3$	$5.4 \pm 0.7$	$14.8 \pm 1.2$	$4.5 \pm 0.5$
M5	$12 \pm 3$	$11.2 \pm 1.3$	$5.2 \pm 0.7$	$10.9 \pm 1.3$	$3.1 \pm 0.4$
M6	$7 \pm 2$	$13.5 \pm 1.5$	$6.2 \pm 0.9$	$14.4 \pm 1.6$	$3.4 \pm 0.5$
M7	$22 \pm 4$	$21.6 \pm 2.2$	$10 \pm 1.2$	$31.6 \pm 3.2$	$8.3 \pm 0.7$
M8	$12 \pm 3$	$9.3 \pm 1.1$	$4.3 \pm 0.6$	$9.5 \pm 1.2$	$3.1 \pm 0.4$
M9	$13 \pm 3$	$13.2 \pm 1.4$	$6.1 \pm 0.8$	$16.3 \pm 1.8$	$5 \pm 0.5$
M10	$5 \pm 2$	$5.2 \pm 0.9$	$2.4 \pm 0.5$	$9.5 \pm 1.2$	$3 \pm 0.4$
M11	$26 \pm 5$	$21.4 \pm 2$	$9.9 \pm 1.2$	$31.9 \pm 2$	$9.2 \pm 0.8$
M12	$20 \pm 4$	$19.8 \pm 2$	$9.2 \pm 1.1$	$28.5 \pm 2.9$	$9.5 \pm 0.8$
M13	$11 \pm 2$	$10.1 \pm 1.2$	$4.7 \pm 0.7$	$17.5 \pm 1.3$	$5.3 \pm 0.5$
M14	$3 \pm 1$	$5.6 \pm 0.9$	$2.6 \pm 0.5$	$8.5 \pm 1.1$	$3 \pm 0.4$
M15	$9 \pm 2$	$12.9 \pm 1.4$	$6 \pm 0.8$	$17.8 \pm 1.9$	$6.2 \pm 0.6$
M16	$22 \pm 4$	$24 \pm 2.2$	$11.1 \pm 1.3$	$37.2 \pm 2.3$	$10.8 \pm 0.9$
M17	$5 \pm 2$	$5.1 \pm 0.9$	$2.4 \pm 0.5$	$10.2 \pm 1.3$	$4.4 \pm 0.5$
M18	$6 \pm 2$	$6.4 \pm 1$	$2.9 \pm 0.5$	$12 \pm 1.4$	$4.2 \pm 0.5$
M19	$18 \pm 3$	$17.1 \pm 1.7$	$7.9 \pm 1$	$27.8 \pm 1.8$	$9.2 \pm 0.8$
M20	$11 \pm 3$	$11.1 \pm 1.3$	$5.1 \pm 0.7$	$15.6 \pm 1.2$	$5.5 \pm 0.6$
M21	$19 \pm 4$	$11.8 \pm 1.3$	$5.5 \pm 0.8$	$14.9 \pm 1.7$	$5.4 \pm 0.6$
M22	$5 \pm 2$	$9.9 \pm 1.3$	$4.6 \pm 0.7$	$8.2 \pm 1$	$2.8 \pm 0.4$
M23	$10 \pm 2$	$7.3 \pm 1$	$3.4 \pm 0.5$	$9.7 \pm 1.2$	$2.5 \pm 0.4$
M24	$0 \pm 0$	$4.7 \pm 0.8$	$2.2 \pm 0.4$	$6.8 \pm 0.9$	$3 \pm 0.4$
M25	$0 \pm 0$	$3.5 \pm 0.9$	$1.6 \pm 0.5$	$4 \pm 0.8$	$1.6 \pm 0.3$
M26	$14 \pm 3$	$12.7 \pm 1.4$	$5.9 \pm 0.8$	$9.7 \pm 0.9$	$3.5 \pm 0.4$
M27	$7 \pm 2$	$7.6 \pm 1$	$3.5 \pm 0.5$	$7.5 \pm 0.7$	$2.6 \pm 0.4$
M28	$12 \pm 3$	$9.5 \pm 1.1$	$4.4 \pm 0.6$	$7 \pm 0.7$	$2.6 \pm 0.4$
M29	$10 \pm 2$	$8.8 \pm 1.1$	$4.1 \pm 0.6$	$7.8 \pm 0.7$	$2.5 \pm 0.4$
M30	$6 \pm 2$	$6.1 \pm 0.8$	$2.8 \pm 0.5$	$5.9 \pm 0.6$	$2.7 \pm 0.4$
M31	$8 \pm 2$	$6.6 \pm 0.9$	$3.1 \pm 0.5$	$5.8 \pm 0.6$	$1.9 \pm 0.3$
M32	$4 \pm 1$	$6.2 \pm 0.9$	$2.9 \pm 0.5$	$7.1 \pm 0.7$	$3.6 \pm 0.4$
M33	$6 \pm 2$	$7.3 \pm 1$	$3.4 \pm 0.5$	$8.1 \pm 0.7$	$2.5 \pm 0.4$
M34	$10 \pm 2$	$10.5 \pm 1.3$	$4.8 \pm 0.7$	$15.9 \pm 1.2$	$4.8 \pm 0.5$
M35	$6 \pm 2$	$8.4 \pm 1$	$3.9 \pm 0.6$	$7.4 \pm 0.7$	$2.7 \pm 0.4$
M36	$8 \pm 2$	$7.4 \pm 1$	$3.4 \pm 0.5$	$4.5 \pm 0.5$	$1.9 \pm 0.3$
M37	$7 \pm 2$	$7 \pm 0.9$	$3.2 \pm 0.5$	$9 \pm 0.8$	$3 \pm 0.4$
M38	$8 \pm 2$	$9.2 \pm 1.1$	$4.3 \pm 0.6$	$8.2 \pm 1$	$3.6 \pm 0.4$
M39	$8 \pm 2$	$6.1 \pm 0.8$	$2.8 \pm 0.5$	$10.1 \pm 0.8$	$3 \pm 0.4$
M40	$24 \pm 4$	$24 \pm 2.2$	$11.1 \pm 1.3$	$34.4 \pm 2.2$	$10 \pm 0.8$
M41	$6 \pm 2$	$6.1 \pm 0.9$	$2.8 \pm 0.5$	$8.3 \pm 0.8$	$2.9 \pm 0.4$
M42	$12 \pm 3$	$13.6 \pm 1.4$	$6.3 \pm 0.8$	$21.2 \pm 1.5$	$0.1 \pm 0$
M43	$14 \pm 3$	$12.9 \pm 1.3$	$6 \pm 0.8$	$11.6 \pm 0.9$	$4.5 \pm 0.5$
M44	$5 \pm 1$	$6.6 \pm 0.8$	$3 \pm 0.5$	$7 \pm 0.7$	$2.9 \pm 0.4$
M45	$15 \pm 3$	$13.9 \pm 1.5$	$6.4 \pm 0.8$	$20.4 \pm 1.5$	$6.4 \pm 0.6$
M46	$12 \pm 3$	$11.7 \pm 1.4$	$5.4 \pm 0.8$	$16.2 \pm 1.2$	$4.9 \pm 0.5$
M47	$23 \pm 4$	$18.3 \pm 1.8$	$8.5 \pm 1$	$25.6 \pm 1.7$	$7.8 \pm 0.7$
M48	$7 \pm 2$	$6.7 \pm 0.9$	$3.1 \pm 0.5$	$7.4 \pm 0.7$	$2.6 \pm 0.4$
M49	$7 \pm 2$	$5 \pm 0.8$	$2.3 \pm 0.4$	$6.9 \pm 0.7$	$1.7 \pm 0.3$
M50	$17 \pm 3$	$16.1 \pm 1.7$	$7.4 \pm 1$	$23.1 \pm 1.5$	$6.7 \pm 0.6$
M51	$15 \pm 3$	$13.7 \pm 1.4$	$6.3 \pm 0.8$	$18.4 \pm 1.3$	$5.4 \pm 0.5$
M52	$15 \pm 3$	$13.7 \pm 1.5$	$6.3 \pm 0.8$	$21.3 \pm 1.5$	$6.6 \pm 0.6$
M53	$11 \pm 2$	$11.5 \pm 1.3$	$5.3 \pm 0.7$	$14.2 \pm 1.1$	$4.5 \pm 0.5$
M54	$21 \pm 4$	$16.9 \pm 1.7$	$7.8 \pm 1$	$24.2 \pm 1.6$	$7.4 \pm 0.7$
M55	$24 \pm 4$	$21.7 \pm 2$	$10.1 \pm 1.2$	$30.4 \pm 1.9$	$10.5 \pm 0.8$
M56	$11 \pm 2$	$10.7 \pm 1.2$	$4.9 \pm 0.7$	$11.7 \pm 0.9$	$4 \pm 0.4$
M57	$28 \pm 5$	$21.6 \pm 2.1$	$10 \pm 1.2$	$33.4 \pm 2.1$	$8.3 \pm 0.7$
M58	$15 \pm 3$	$13.2 \pm 1.4$	$6.1 \pm 0.8$	$15.4 \pm 1.2$	$4.7 \pm 0.5$
M59	$10 \pm 2$	$12.3 \pm 1.4$	$5.7 \pm 0.8$	$14.2 \pm 1.1$	$4.7 \pm 0.5$
M60	$9 \pm 2$	$8.6 \pm 1.1$	$4 \pm 0.6$	$11.5 \pm 1$	$4.1 \pm 0.5$

Tabla 12.3: Ubicación de las muestras

No.	Departamento	Municipio	Longitud	Latitud	Altitud	Geoforma	Relieve	Pendiente
					(msnm)
1	San Marcos	Ocos	-92.1805267	14.5090933	45	Pradera	Plano	0-2%
2	San Marcos	Tecun Uman	-92.145462	14.7241268	65	Terraza	L. ondulado	2 - 6%
3	San Marcos	San Rafael p.d.c.	-91.935997	14.9258547	796	Cerro	Quebrado	20-40%
4	San Marcos	Catarina	-92.0869141	14.8345032	140	Terraza	Ondulado	2-6%
5	San Marcos	La Reforma	-91.8322372	14.7850075	1097	Cerro	Quebrado	20-40%
6	Quetzaltenango	Coatepeque	-91.9606323	14.6934662	293	Terraza	S. ondulado	2-6%
7	Quetzaltenango	Coatepeque	-91.9725571	14.5718555	86	Pradera	Ondulado	0-2%
8	Quetzaltenango	Colomba	-91.731102	14.7185297	1077	P.m.	Quebrado	12-20%
9	Quetzaltenango	Génova	-91.8267517	14.6268368	473	Colina	Quebrado	2 - 6%
10	Retalhuleu	Retalhuleu	-91.685051	14.555274	314	plano	Terraza	2 - 6%
11	Retalhuleu	Champerico	-91.8599701	14.3235273	56	Terraza	Plano	O - 2%
12	Retalhuleu	Champerico	-92.0111008	14.3900919	25	Terraza	Ondulado	0-2%
13	Retalhuleu	Retalhuleu	-91.8342285	14.4696426	65	Valle	Ondulado	2-6%
14	Quetzaltenango	El viejo palmar	-91.5525665	14.6730385	1090	Cerro	Quebrado	20-40%
15	Retalhuleu	Retalhuleu	-91.7142792	14.4233856	134	Terraza	Ondulado	2-6%
16	Retalhuleu	Retalhuleu	-91.7722244	14.2714357	151	Pradera	Plano	0-2%
17	Suchitepequez	Chicacao	-91.3592377	14.5438528	610	P.m.	Quebrado	6-12%
18	Suchitepequez	Santo Domingo S.	-91.4722595	14.4658899	390	Terraza	M. ondulado	6-12%
19	Suchitepequez	Mazatenango	-91.6140289	14.1181078	27	Colina	Plano	0-2%
20	Suchitepequez	Cuyotenango	-91.5905762	14.2667418	46	Terraza	Plano	6-12%
21	Escuintla	Tiquizate	-91.4509506	14.0829639	40	P.i.	Plano	0-2%
22	Escuintla	Nueva Consepción	-91.3384323	14.004447	40	P.i.	L. ondulado	2-6%
23	Escuintla	Nueva Consepción	-91.2690735	14.2075214	59	Terraza	L. ondulado	0-2%
24	Escuintla	Tiquizate	-91.3796692	14.2810659	44	Terraza	Plano	0-2%
25	Chimaltenango	Pochuta	-91.075737	14.5522776	1028	Cerro	F. ondulado	20-40%
26	Suchitepequez	Santa Barbara	-91.2123947	14.4798851	613	Ladera	M. ondulado	20-40%
27	Escuintla	Pto. Sn. José	-90.9556503	13.9753952	59	Terraza	Plano	0-2%
28	Escuintla	La Gomera	-91.0727234	14.1206713	90	Terraza	Plano	0-2%
29	Escuintla	La democracia	-90.9169083	14.1275501	70	Terraza	Ondulado	2-6%
30	Escuintla	El rodeo	-90.7943802	14.3669119	562	Terraza	Ondulado	6-12%
31	Escuintla	Palín	-90.6889572	14.4191599	1182	Ladera	Ondulado	6-12%
32	Guatemala	Villa Canales	-90.5387878	14.3260593	1110	Ladera	M. ondulado	12-20%
33	Escuintla	Guanagazapa	-90.625206	14.2422733	588	Cerro	M. ondulado	20-40%
34	Escuintla	Guanagazapa	-90.6603546	14.1387072	259	T. antigua	L. ondulado	2-6%
35	Escuintla	Sta. Lucia Cotz.	-91.0632019	14.3637867	443	Cerro	Ondulado	12-20%
36	Escuintla	Sta. Lucia Cotz.	-91.0103073	14.3871784	884	Cerro	M. ondulado	20-40%
37	Escuintla	Sta. Lucia Cotz.	-91.1310425	14.1776438	56	Terraza	L. ondulado	2-6%
38	Escuintla	La Gomera	-91.1411819	13.9421806	36	P.i.	Casi plano	0-2%
39	Escuintla	Iztapa	-90.751236	13.9825068	32	P.i.	Casi plano	0-2%
40	Escuintla	Masagua	-90.7817078	14.1442862	92	P.i.	Casi plano	0-2%
41	Guatemala	Villa Canales	-90.4701233	14.3844376	1050	Cerro	M. ondulado	12-20%
42	Santa Rosa	Barberena	-90.3684845	14.3064365	1058	Ladera	M. ondulado	12-20%
43	Escuintla	Guanagazapa	-90.5912018	14.0998697	215	T. antigua	L. ondulado	2-6%
44	Santa Rosa	Pueblo Nuevo V.	-90.565773	14.2129631	615	Cerro	M. ondulado	0-2%
45	Santa Rosa	Taxisco	-90.5726929	14.0023527	48	P.i.	Plano	0-2%
46	Santa Rosa	Chiquimulilla	-90.3352356	14.007988	91	P.i.	Plano	0-2%
47	Santa Rosa	Chiquimulilla	-90.3041229	13.9031935	27	P.i.	Plano	20-40%
48	Santa Rosa	Taxisco	-90.4455109	14.0997238	673	Ladera	F. ondulado	20-40%
49	Santa Rosa	Chiquimulilla	-90.3388824	14.1539974	853	Cerro	M. ondulado	12-20%
50	Jutiapa	Pasaco	-90.2081451	13.8842573	75	Terraza	Plano	0-2%
51	Jutiapa	Moyuta	-90.1302261	13.8105373	18	P.i.	Plano	0-2%
52	Santa Rosa	Oratorio	-90.1884384	13.997098	421	Ladera	M. ondulado	12-20%
53	Jutiapa	Moyuta	-90.1148148	13.9326935	224	T. antigua	L. ondulado	2-6%
54	Jutiapa	Jalpatagua	-90.010994	14.1090002	371	Cerro	M. ondulado	12-20%
55	Santa Rosa	Oratorio	-90.150528	14.1683903	470	P.i.	L. ondulado	2-6%
56	Jutiapa	Atescatempa	-90.7286652	14.1746645	680	T. antigua	L. ondulado	2-6%
57	Jutiapa	Sn. José Acatempa	-90.1176987	14.2564812	1044	Ladera	M. ondulado	12-20%
58	Santa Rosa	Nueva Santa Rosa	-90.2555389	14.3812857	937	Ladera	Ondulado	6-12%
59	Santa Rosa	Guazacapan	-90.4421387	14.0612307	181	Depresión	Ondulado	12-20%
60	Santa Rosa	Taxisco	-90.466011	13.9948196	25	P.i.	Plano	0-2%

Ejemplo de cálculo de la actividad en la muestra M39

Para el $\ ^{40}$K

$t=14400 \pm 5$ s

$m=0.600\pm0.001$ kg

$G\epsilon_p = 0.00610 \pm 0.00018$

$P_p = 0.1069 \pm 0.0013$

$A_p=2019\pm 37$

Entonces

$$\begin{eqnarray*} {\cal A}&=&{A_p \over P_p G\epsilon_p t m}\\ {\cal A}&=& {2... ...mes 0.006\times 14400\times 0.600}} \approx 359 \hbox{ Bq/kg}\\ \end{eqnarray*}$$

para la incerteza

$$\begin{eqnarray*} \Delta{\cal A} &=& {\cal A}\left( {\Delta A_p \over A_p} + {\... ... \over 0.6} +{5 \over 14400} \right) \approx 22\hbox{ Bq/kg}\\ \end{eqnarray*}$$

Para el $\ ^{235}$U Primero se calcula el área del pico del $\ ^{226}$Ra a patir de el área del pico de 609 keV del $\ ^{214}$Bi. Se tiene para este último pico $A_p=310\pm 25$, entonces

$$\begin{eqnarray*} A_p^{Ra}&=&9.00{A_p^{Bi} \over 100.00}\\ A_p^{Ra}&=&9.00\times {310 \over 100.00}\approx 27.9\\ \end{eqnarray*}$$

para la incerteza

$$\begin{eqnarray*} \Delta A_p^{Ra} &=& A_p^{Ra}\left( {\Delta A_p^{Bi} \over A_p... ...{0.10 \over 9.00} + {0.92 \over 100.00}\right) \approx 2.8\\ \end{eqnarray*}$$

Con esta área se calcula la actividad del $\ ^{235}$U, para cuyo pico en 186 keV se tiene $G\epsilon_p = 0.03\pm0.001$
$P_p^{U} = 0.54\pm 0.02$
$A_p^{U}=386\pm 37$
entonces

$$\begin{eqnarray*} {\cal A}({}^{235}U)&=&{A_p^{U}-A_p^{Ra} \over P_p^{U} G\epsil... ...\times 0.03\times 14400\times 0.600}\approx 2.2\hbox{ Bq/kg}\\ \end{eqnarray*}$$

para la incerteza

$$\begin{eqnarray*} \Delta{\cal A}({}^{235}U) &=& {\cal A}({}^{235}U)\left( {\Del... ...over 0.6} +{5 \over 14400} \right)\approx 0.40\hbox{ Bq/kg} \\ \end{eqnarray*}$$

Figura 12.1: Espectro de la muestra M39

Figura 12.2: Espectro de la muestra M39 (continuación)

Figura 12.3: Espectro de la muestra M39 (continuación)