Spatial distribution and source identification of heavy metal pollution in roadside surface soil: a study of Dhaka Aricha highway, Bangladesh

Ecological Processes

Table 5 Component matrix showing three factor models for sampling sites

Elements	PC1	PC2	PC3
S1	−1.112	0.205	−0.218
S2	0.009	−1.544	−0.685
S3	−1.046	1.295	−0.125
S4	0.265	−1.428	−2.137
S5	0.228	−1.310	−1.138
S6	0.583	−0.505	0.256
S7	−1.301	0.151	−0.555
S8	0.031	0.496	1.546
S9	0.410	−0.745	0.816
S10	1.192	0.417	0.230
S11	0.860	−0.114	0.992
S12	1.364	2.730	−1.984
S13	−1.183	1.002	0.117
S14	1.071	0.337	1.380
S15	0.349	−0.050	−0.237
S16	0.816	−0.283	0.060
S17	0.750	−0.442	0.952
S18	−1.536	−0.157	0.194
S19	−1.751	−0.054	0.535